CBSE > Class 10 | CBSE Board | Homework Help

{tex}\frac { x } { a } + \frac { y } { b } = 2{/tex}
{tex}\frac { b x + a y } { a b } = 2{/tex}
{tex}bx + ay = 2ab{/tex}........(i)
{tex}ax - by = (a^2 - b^2){/tex}...(ii)
Multiplying (i) by b and (ii) by a
{tex}b^2x + bay = 2ab^2{/tex}.............(iii)
{tex}a^2x - bay = a(a^2 - b^2){/tex}........(iv)
Adding (iii) and (iv),we get
{tex}b^2x + a^2x = 2ab^2 + a^3 - ab^2{/tex}
{tex}x(b^2 + a^2) = 2ab^2 + a^3 - ab^2{/tex}
{tex}x(b^2 + a^2) = ab^2 + a^3{/tex}
{tex}x(b^2 + a^2) =a(b^2 + a^2){/tex}
{tex}x = \frac { a \left( b ^ { 2 } + a ^ { 2 } \right) } { \left( b ^ { 2 } + a ^ { 2 } \right) } = a{/tex}
Putting x = a in (i),we get
{tex}b \times a + a y = 2 a b{/tex}
{tex}a y = 2 a b - a b \Rightarrow a y = a b{/tex} or y = b
{tex}\therefore{/tex} solution is x = a, y = b

0Thank You

ANSWER

6/2(1+2)

Posted by Saket Tiwari 2 years, 11 months ago

CBSE > Class 10 > Mathematics

2 answers

Omya Aryan 2 years, 11 months ago

6/2(1+2)= 6/2(3)=18/2=9

2Thank You

Saket Tiwari 2 years, 11 months ago

2Thank You

ANSWER

BBC module 8 mcq

Posted by Nihit Lodha 2 years, 11 months ago

CBSE > Class 10 > English Language and Literature

1 answers

Nikhil Sharma 2 years, 11 months ago

Literary devices in lesson letter to god

0Thank You

ANSWER

BBC module 8

Posted by Nihit Lodha 2 years, 11 months ago

CBSE > Class 10 > English Language and Literature

0 answers

ANSWER

NCERT Solutions?

Posted by Tripti Rawat 2 years, 11 months ago

CBSE > Class 10 > Mathematics

2 answers

Mohd Ali 2 years, 11 months ago

Find LCM and HCF 26and91

0Thank You

Krishna Kanwar 2 years, 11 months ago

Yess

0Thank You

ANSWER

Who was the formed of hind swaraj party

Posted by Peetambersingh Rajput 2 years, 11 months ago

CBSE > Class 10 > English Language and Literature

3 answers

Vishnu Mishra 2 years, 11 months ago

C R Das and Motilal Nehru

2Thank You

Palni Khandelwal 2 years, 11 months ago

CR das and motilal nehru

2Thank You

N P 2 years, 11 months ago

CR das and Motilal Nehru

1Thank You

ANSWER

I not able to understand surface area and area related to circle. So, how I prepare these two chapters in 15 to 16 days any trick

Posted by Shruti Singh 2 years, 11 months ago

CBSE > Class 10 > Mathematics

1 answers

Shanu Yadav 2 years, 11 months ago

Learn all the formulas of both the chapters and practice ncert questions then refer rs agrawal or rd sharma book

3Thank You

ANSWER

How I prepare for exam

Posted by Shruti Singh 2 years, 11 months ago

CBSE > Class 10 > Mathematics

2 answers

Shruti Singh 2 years, 11 months ago

My pre boards are going on , so I'm very nervous

1Thank You

Shanu Yadav 2 years, 11 months ago

I'm also nervous regarding exams.

0Thank You

ANSWER

32+34

Posted by Yashvi Nain 2 years, 11 months ago

CBSE > Class 10 > Mathematics

5 answers

Tanya Chauhan 2 years, 11 months ago

0Thank You

Saad Chaudhary 2 years, 11 months ago

0Thank You

Shanu Yadav 2 years, 11 months ago

0Thank You

Vivek Sisodiya 2 years, 11 months ago

0Thank You

Vivek Sisodiya 2 years, 11 months ago

2Thank You

ANSWER

If fixi =625 and fi =25 then the value of x =

Posted by Umpi Hibu 2 years, 11 months ago

CBSE > Class 10 > Mathematics

3 answers

Shanu Yadav 2 years, 11 months ago

625/25=25

0Thank You

Dev Katiyar 2 years, 11 months ago

1Thank You

Vivek Sisodiya 2 years, 11 months ago

Answer is 25

0Thank You

ANSWER

2/6 - 4/9 × 5.9

Posted by Vijayasri Venkatesan 2 years, 11 months ago

CBSE > Class 10 > Mathematics

3 answers

Omya Aryan 2 years, 11 months ago

-2.2

0Thank You

Choudhary Kundan 2 years, 11 months ago

Use app Login Question Find x if 4x+6x=9x A ln2−ln3ln(3−1)+ln2 Correct Answer B ln2−ln3ln(5−1)+ln2 C ln2−ln3ln(5−1)−ln2 D ln3−ln2ln(5−1)+ln2 Medium Open in App Solution Verified by Toppr Correct option is A) 6x+4x=9x divide by 4x to form (23)x 4x6x+1=4x9x (23)x+1=(23)2x ((23)x)2−(23)x−1=0 So (23)x=21±1−4.1(−1)=21±,5 For positive solution (23)x=21+5 Applying logarithm xln(23)=ln(21+5) lnba=lna−lnb x=ln3−ln2ln(1+5)−ln2.

0Thank You

Uttam Soni 2 years, 11 months ago

-0. 98

0Thank You

ANSWER

You are Ashwani/Akanksha Chawla of B-429, Moti Nagar, New Delhi. For a fortnight you have been noticing a foul smell in the drinking water from the municipal tap. Some cases of vomiting and loose motion have also been reported by the residents of the colony. Write a letter to the editor of a newspaper complaining against the polluted water supply in your locality

Posted by Bindu Devi 2 years, 10 months ago

CBSE > Class 10 > English Language and Literature

1 answers

Preeti Dabral 2 years, 10 months ago

429 moti nagar ,
New delhi 110052
29 /07/2022

The Editor ,
The Hindustan Times
New Delhi

Sir,

I beg for the kindness of the columns in your renowned newspaper so that I might alert the local "water supply department?, to the issue of water supply in our neighbourhood. The water supply in our community has been erratic for the last week. Only three of the seven days received the supply, and even then, only for an hour each day. Water was only available yesterday for 35 minutes. The Assistant Engineer in question responded when contacted that there was an energy issue causing the water supply to become erratic.

I wasn't happy with the response. The worried Assistant Engineer doesn't seem to be taking the issue seriously. Water is the most important essential during the hot months. I I sincerely hope that you would be so kind as to publish my letter in your daily, allowing the higher authorities to swiftly address this pressing issue and take appropriate action against those guilty.

Yours truly
Ashwani

0Thank You

ANSWER

Children tend to become tensed and nervous before board exams . This may affect their health nd performance in the examination.Write a paragraph in 100-120 words on the ' Need for counciling before board exams '.

Posted by Raina Gupta 2 years, 11 months ago

CBSE > Class 10 > English Language and Literature

1 answers

Aastha Vats 2 years, 11 months ago

Every year with board exams approaching, schools and colleges work hard to prepare their students While educational institutions compete hard to ensure good results, they also make sure their student don’t face stress. The stress that the Board exams have started creating is a recent phenomenon. which has been created due to the highly competitive world we are heading into. Students often make securing high marks in boards as a life and death issue. This is also because the cut-off d many colleges is so high that many children miss their chance of studying in it and, therefore, art under pressure from parents, family and friends. All these pressures affect the mental health of children as they become nervous before the exams so much so they become even mentally blank and forget as they appear for a paper. Therefore, counselling before the board exams is very essential for better performance and health of the children. These counselling sessions give children some mental support and strength to use their energy in a positive manner. Most schools are now taking to these counselling sessions for better results. These counselling sessions are not only for students but also for parents. A counsellor in these sessions does not only talk and try to de-stress the child but also guides him too long to adopt a better lifestyle. The only thing that can help children deal with stress and not lose their important years of life and innocence of childhood counselling before board exams are important.

0Thank You

ANSWER

How did mendel experiment shows that different traits are inherited independently explain

Posted by Riya Panu 2 years, 11 months ago

CBSE > Class 10 > Science

2 answers

Aastha Vats 2 years, 11 months ago

During dihybrid cross by Mendel, it was observed that when two pairs of traits were considered; each trait expressed independently of the other.

2Thank You

Zoyaa Qamar 2 years, 11 months ago

Mendel dihybridation experiment shows that that different traits are inherited independently In his experiment he took YELLOW AND ROUND SEED × GREEN AND WRINKLE SEED and get the ratio 9:3:3:1 Yellow and round: yellow and wrinkled: green and round: green and wrinkleed After these results the proposed his third law LAW OF INDEPENDENT ASSORTM ENT

1Thank You

ANSWER

For an A.P., if T25 - T20, then find 'd'.

Posted by Gayatri Pathade 2 years, 11 months ago

CBSE > Class 10 > Mathematics

2 answers

Aastha Vats 2 years, 11 months ago

a+24d - (a+19d) = 24d - 19 d = 5d d = 1/5

0Thank You

Muzaif Ur Rahman 2 years, 11 months ago

Write question properly

0Thank You

ANSWER

Why do aquatic can't breath outside the water?

Posted by Tanvi Sree Sivapooja 2 years, 11 months ago

CBSE > Class 10 > Science

2 answers

Divisha Sahani 2 years, 11 months ago

In English While humans and terrestrial animals breathe oxygen from the air, aquatic animals use oxygen that is dissolved in water. An aquatic animal breathes by absorbing free oxygen into its blood through its gills or directly through its body surface.

5Thank You

Tanvi Sree Sivapooja 2 years, 11 months ago

Because they can't breath directly from the atmosphere

5Thank You

ANSWER

Give me the syllabus of information technology (402)

Posted by Bushra Aquil 2 years, 11 months ago

CBSE > Class 10 > Information Technology (402)

5 answers

Varsha Hegde 2 years, 10 months ago

𝓔𝔁𝓬𝓮𝓹𝓽 𝓬𝓸𝓶𝓶𝓾𝓷𝓲𝓬𝓪𝓽𝓲𝓸𝓷 𝓼𝓴𝓲𝓵𝓵𝓼 𝓪𝓷𝓭 𝓰𝓻𝓮𝓮𝓷 𝓼𝓴𝓲𝓵𝓵𝓼 𝓮𝓿𝓮𝓻𝔂𝓽𝓱𝓲𝓷𝓰 𝓲𝓼 𝓽𝓱𝓮𝓻𝓮

0Thank You

Omya Aryan 2 years, 11 months ago

Except Communication skills and green skills, everything is coming.

2Thank You

Archana Dagar 2 years, 11 months ago

Unit 2,3,4 employability skill

0Thank You

Bushra Aquil 2 years, 11 months ago

Doesn't found

1Thank You

Maitri Hirani 2 years, 11 months ago

see from the app

0Thank You

ANSWER

What do you mean by chatbots

Posted by Abc Xyz 2 years, 11 months ago

CBSE > Class 10 > Artificial Intelligence (417)

2 answers

T Shanmuk 2 years, 10 months ago

This content has been hidden. One or more users have flagged this content as inappropriate. Once content is flagged, it is hidden from users and is reviewed by myCBSEguide team against our Community Guidelines. If content is found in violation, the user posting this content will be banned for 30 days from using Homework help section. Suspended users will receive error while adding question or answer. Question comments have also been disabled. Read community guidelines at https://mycbseguide.com/community-guidelines.html

Few rules to keep homework help section safe, clean and informative.

Don't post personal information, mobile numbers and other details.
Don't use this platform for chatting, social networking and making friends. This platform is meant only for asking subject specific and study related questions.
Be nice and polite and avoid rude and abusive language. Avoid inappropriate language and attention, vulgar terms and anything sexually suggestive. Avoid harassment and bullying.
Ask specific question which are clear and concise.

Remember the goal of this website is to share knowledge and learn from each other. Ask questions and help others by answering questions.

0Thank You

Aashi Bhardwaj 2 years, 11 months ago

Chat Boat is a software which can communicate with humans via text, voice etc. There are two type of chatboat - Smart boat and script boat

3Thank You

ANSWER

√5 अपरिमेय संख्या है

Posted by Edit Kb 2 years, 11 months ago

CBSE > Class 10 > गणित

1 answers

Srishty Kumari 2 years, 11 months ago

Let us assume √5 is rational number which can be written in the form p/q there for √5=p/q (where p and q are co-prime integer and q is not equal to 0) √5q=p --equation first squareing both side 5q²=p² here five divides p² Therefore 5 also divides p let p = 5C putting value of p is equation first equation √5q= 5C squaring both side 5q² = 25c² q²=5c² q²/5 =c² Here 5 divides q² Therefore 5 also divides q Here we can see 5 divides both integer p and q but it contradicts that p and q are co prime integer this contradiction arising due to our wrong assumption therefore √ 5 is irrational number.

1Thank You

ANSWER

Why did valli refuse to have the cool drink? Justify her character

Posted by Ambika Venkat 2 years, 11 months ago

CBSE > Class 10 > English Language and Literature

2 answers

Omya Aryan 2 years, 11 months ago

In the lesson, Valli is a girl character displayed by the author. She is very intelligent and sharp minded girl who wants to take a ride on the bus. She plans everything about her journey such as timing, penny required and all. She collected the money as per the requirement. So when the cold drink was offered to her, she refused to have it as she was having limited money.

2Thank You

Anvesha Sahay 2 years, 11 months ago

Valli refuse to have the cold drink because she just want to know about it and get some relax to make her happy Character=Valli was so curious girl she always use to get knowledge.She takes intrest in every talk of anyone.She always use to poke her nose.She wants to explore the world.We can say that she is adventures girl.

1Thank You

ANSWER

I have already paid please send previous ten years question papers

Posted by Ahmed Ramshah 2 years, 11 months ago

CBSE > Class 10 > Computer Applications (165)

1 answers

Anshu Kumar 2 years, 10 months ago

Send kro fir

0Thank You

ANSWER

What are monochromatic light rays

Posted by Amit Rana 2 years, 11 months ago

CBSE > Class 10 > Science

1 answers

Shanu Yadav 2 years, 11 months ago

Monochromatic light contains light with a single wavelength

5Thank You

ANSWER

Love

Posted by Priya Ji 2 years, 11 months ago

CBSE > Class 10 > हिंदी ब

3 answers

Tejas T. 2 years, 10 months ago

Don't post personal information, mobile numbers and other details.
Don't use this platform for chatting, social networking and making friends. This platform is meant only for asking subject specific and study related questions.
Be nice and polite and avoid rude and abusive language. Avoid inappropriate language and attention, vulgar terms and anything sexually suggestive. Avoid harassment and bullying.
Ask specific question which are clear and concise.

Remember the goal of this website is to share knowledge and learn from each other. Ask questions and help others by answering questions.

0Thank You

Vaishnavi Gundage 2 years, 11 months ago

Kiske hriday mein vas Karta hai in Hindi

5Thank You

Vaishnavi Gundage 2 years, 11 months ago

Ishwar kiske hriday mein vas karta hai

3Thank You

ANSWER

Teenon Kendriya pravritti ke mapon ke anubhavik sambandh ke prayog se ek bantan ka Madhyam gyat Kijiye Jiske Madhya 179 tatha bahulak 175 Hain

Posted by Piyush Pal 2 years, 11 months ago

CBSE > Class 10 > गणित