CBSE > Class 10 | CBSE Board | Homework Help

Lencho had complete faith in God. The sentences in the story that show this are as follows: (i) But in the hearts of all who lived in that solitary house in the middle of the valley, there was a single hope: help from God.

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Prove that root5+root3 is irrational

Posted by Marisetty Aashish 4 years, 9 months ago

CBSE > Class 10 > Mathematics

1 answers

Jay Singh 4 years, 9 months ago

Let root5+root3be a rational number which can be written in the form of p upon q and q is not equal to 0 root5+root3=p\q root3=p\q-root5 root3=p-root5\q So that p-root5 is rational number Where root3 is irrational number So our contradict assumptions is wrong Thus' root 5+root 3 is irrational number Proved

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Proofs in mathematics

Posted by Simmi Fagna 4 years, 9 months ago

CBSE > Class 10 > Mathematics

1 answers

Divya Soni 4 years, 9 months ago

A mathematical proof is an inferential argument for a mathematical statement, showing that the stated assumptions logically guarantee the conclusion.

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Why does sky appear dark instead of blue to an astronaut??

Posted by Dev Baliyan 4 years, 9 months ago

CBSE > Class 10 > Science

5 answers

Rishika Malu 4 years, 9 months ago

There will no scattering of light.Earth has no atmosphere

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Anand Sah 4 years, 9 months ago

Due to absence of atmospheric particals in the space astronauts are able to see balck atmosphere instead of blue.

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Trisha Singh 4 years, 9 months ago

Because at a very high altitude the scattering is not prominent at such height ..

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Tanishq Yaduvanshi 4 years, 9 months ago

Because there is no atmosphere in outer space that can sunlight.As no sunlight scattered, there is no scatering happens and blue light not reach on his eyes that's why the sky appear dark istead of blue.

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Maheep Thugzz 4 years, 9 months ago

Because at a very high altitude the scattering is not prominent at such height ..

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ANSWER

If sinA=3/4 then find the value of secA

Posted by Priyanshi Yadav 4 years, 9 months ago

CBSE > Class 10 > Mathematics

5 answers

Tanvi @1201 4 years, 9 months ago

Sec=4 by root 7

1Thank You

Tanishq Singh 4 years, 9 months ago

Sin A = 3/4 =perpendicular /base P=3 H=4 We can find tha base by pythagoras theorem in triangle ABC BA²=AC²-BC² BA²=4²-3² BA²=16-9 BA²=7 BA=√7 SecA = hypotenuse /base SecA=4/√7

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It'S Krishna 4 years, 9 months ago

Diya soni you copied my answer

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Divya Soni 4 years, 9 months ago

Sin A = 3/4 =perpendicular /base P=3 H=4 We can find tha base by pythagoras theorem in triangle ABC BA²=AC²-BC² BA²=4²-3² BA²=16-9 BA²=7 BA=√7 SecA = hypotenuse /base SecA=4/√7

1Thank You

It'S Krishna 4 years, 9 months ago

Sin A = 3/4 =perpendicular /base P=3 H=4 We can find tha base by pythagoras theorem in triangle ABC BA²=AC²-BC² BA²=4²-3² BA²=16-9 BA²=7 BA=√7 SecA = hypotenuse /base SecA=4/√7

1Thank You

ANSWER

On what rule is inheritance based

Posted by Bhomik Sanwal 4 years, 9 months ago

CBSE > Class 10 > Science

3 answers

Adithya Dev A 4 years, 9 months ago

The laws of inheritance:- 1) Law of Dominance. 2) Law of Segregation. 3) Law of Independent Assortment.

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Priyanshi Yadav 4 years, 9 months ago

Inheritance based on DNA

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Unbreakable Gamer 4 years, 9 months ago

Law of inheritance

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ANSWER

An element X has atomic number 17 a To which period of the modern periodic table will it belong b What is the valency of the element c Write the formula of the compound formed when it combines with sodium? (3marks)

Posted by Maheep Thugzz 4 years, 9 months ago

CBSE > Class 10 > Science

4 answers

Maheep Thugzz 4 years, 9 months ago

Thank you ?

2Thank You

Smruti Rekha Sahoo 4 years, 9 months ago

Metal X is chlorine Group - 17, period - 3 Valency - 3 and compound is Nacl...

3Thank You

Maheep Thugzz 4 years, 9 months ago

Please give me full answer

4Thank You

Dev Baliyan 4 years, 9 months ago

Period - 3 Valency- 3+ Compound formula - NaX ( NaCl)

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ANSWER

a*a+b*b

Posted by Tanish Tiwadi 4 years, 9 months ago

CBSE > Class 10 > Mathematics

3 answers

Sahil Singh 4 years, 9 months ago

if the question is a^2+b^2= (a^2+b^2)-2ab

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Pavi Pandey 4 years, 9 months ago

A square + b square??what do u want to ask??

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Simmi Fagna 4 years, 9 months ago

What is this ?

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ANSWER

Write anuched on parish ram safalta Ki kunji hai.in 100-120 words

Posted by Rishika Kundu 4 years, 9 months ago

CBSE > Class 10 > हिंदी ब

1 answers

Divya Soni 4 years, 9 months ago

परिश्रम ही सफलता की कुंजी है। परिश्रम द्वारा छोटे से छोटा मनुष्य बड़ा बन सकता है। परिश्रम के द्वारा सभी कार्य सम्भव हैं। ... आज मानव ने परिश्रम के द्वारा संसार में स्वर्ग उतारने की कल्पना को साकार कर दिया हैं | कठोर परिश्रम करके ही मानव ने अनेक आविष्कार किये हैं जो मानव जीवन में बहुत उपयोगी हैं।

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ANSWER

Is crude oil essential for the development process in country?discuss.

Posted by Anchal Sharma 4 years, 9 months ago

CBSE > Class 10 > Social Science

2 answers

Tanvi @1201 4 years, 9 months ago

Is crude oil is essential for the development process in country as Petrol,diesel are the by products of crude oil this all all are used in vehicle,cars. Mostly this oil is also used in in fact in building the roads.

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Divya Soni 4 years, 9 months ago

Yes, crude oil is essential for the development of a country as it provides the base of industrial advancement. 97% of the energy required for transportation is provided by crude oil. A product called Premium Motor Spirit that is derived from crude oil is essential for vehicles.

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ANSWER

Lencho had unflinching faith in God. Did he have the same faith in humans too? Write about his attitude towards God and humans taking instances from the story.

Posted by Palak Sharma 4 years, 9 months ago

CBSE > Class 10 > English Language and Literature

1 answers

Unbreakable Gamer 4 years, 9 months ago

No he doesn't have faith on human . He had a unbreakable faith in God but who helped him for money, the postmaster and post office employee , lencho said them crooks so this show that he doesn't have faith on human

2Thank You

ANSWER

Why do aquatic animals breathe faster than the Terrestrial organisms?

Posted by Tanvi @1201 4 years, 9 months ago

CBSE > Class 10 > Science

3 answers

Unbreakable Gamer 4 years, 9 months ago

Because the oxygen dissolved in water is less as compared to oxygen present in environmentTerrestrial organisms(Human beings, Animals,etc) obtain oxygen directly through the open atmosphere while aquatic organisms get the oxygen which are dissolved so, to meet the requirement of oxygen aquatic organisms respire/breath at faster rate.

1Thank You

Anand Sah 4 years, 9 months ago

Terrestrial organisms(Human beings, Animals,etc) obtain oxygen directly through the open atmosphere while aquatic organisms get the oxygen which are dissolved so, to meet the requirement of oxygen aquatic organisms respire/breath at faster rate.

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Bhomik Sanwal 4 years, 9 months ago

Because the oxygen dissolved in water is less as compared to oxygen present in environment

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ANSWER

Inquiry letters

Posted by Simran Bhullar 4 years, 9 months ago

CBSE > Class 10 > English Language and Literature

1 answers

Simmi Fagna 4 years, 9 months ago

Inquiry letter are written for the purpose of asking inquiry for something from the the recipient inquiry can we e sent as a formed business letter or as an email

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ANSWER

Tan1 tan2 tan3 ...tan89

Posted by Rajdeep Singh 4 years, 9 months ago

CBSE > Class 10 > Mathematics

1 answers

Rimi Singh 4 years, 9 months ago

Ans is 1

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ANSWER

The mean of the following frequency distribution is 62.8 and the sum of the all frequencies is 50.compute the missing frequencies f1 nad f2 .

Posted by Surinder Kumar 4 years, 9 months ago

CBSE > Class 10 > Mathematics

2 answers

Surinder Kumar 4 years, 9 months ago

Class interval 0-20,20-40,40-60,60-80,80-100,100-120.and frequency is 5,f1,10,f2,7,8.

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Surinder Kumar 4 years, 9 months ago

Table is also given

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ANSWER

Justify the statement faith can move mountains with reference to the story letter to God

Posted by Krish Agrawal 4 years, 9 months ago

CBSE > Class 10 > English Language and Literature

1 answers

Divya Soni 4 years, 9 months ago

yes faith can move mountains because the poor farmer lost its all . then he have only one choice the help from god so he wrote letter to god . His faith in god is too much that the postmaster hepl him.

1Thank You

ANSWER

Define Refraction of light?

Posted by ? ?? 4 years, 9 months ago

CBSE > Class 10 > Science

3 answers

Anand Sah 4 years, 9 months ago

Refraction of light is a phenomenon of light in which light rays bend while traveling through obliquely (not normal) rarer medum to denser medium and vice versa..

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Simmi Fagna 4 years, 9 months ago

Refraction is the bending of a wave when it enters a medium where its speed is different.

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Tanvi @1201 4 years, 9 months ago

Refraction is the change in direction of a wave passing from one medium to another or from a gradual change in the medium. Refraction of light is the most commonly observed phenomenon, but other waves such as sound waves and water waves also experience refraction.

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ANSWER

Tranlate "hum dono paath padhte hain " to sanskrit

Posted by A N 4 years, 9 months ago

CBSE > Class 10 > संस्कृत (शेमुषी)

5 answers

Ayushi Gupta 4 years, 3 months ago

आवाम् पाठ: पठावः

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Anish Sharma 4 years, 7 months ago

आवाम् पाठम् पठावः

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Poonam Gogia 4 years, 9 months ago

आवां पाठं पठाव:

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Akanksha Sah 4 years, 9 months ago

आवाम पाठं पठाव:

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Ak Soni 4 years, 9 months ago

युवाम पाठं पठथ:

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ANSWER

You are Balraj/Bala from Ferozabad, Gujarat and you live near the landfill site. The growing unsanitary conditions are causing multiple diseases and inconvenience due to poor hygiene to the residents. It has also resulted in illnesses and rising fatalities in your colony. Write a letter to the Municipal Commissioner requesting him/her to organize a cleanliness drive.

Posted by Tanmay Surushe 4 years, 9 months ago

CBSE > Class 10 > English Language and Literature

1 answers

Surjeet Patel 2 years, 1 month ago

10Thank You

ANSWER

What is the proper definition of respiration

Posted by Pooja V Reddy 4 years, 9 months ago

CBSE > Class 10 > Science

4 answers

Adithya Dev A 4 years, 9 months ago

The biochemical process by which glucose undergoes oxidation in the body of an organism to produce energy is called respiration.

0Thank You

Unbreakable Gamer 4 years, 9 months ago

Exchange of air between body and surrounding environment

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Tanvi @1201 4 years, 9 months ago

Respiration is biochemical process in which cells of an organism obtain energy by combining Oxygen and glucose resulting in release of carbon dioxide ,water and ATP.

1Thank You

Yarra Pawni 4 years, 9 months ago

The breakdown of food in the prescence of energy

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ANSWER

Need kannada regional language sample paper

Posted by Pooja V Reddy 4 years, 8 months ago

CBSE > Class 10 > Regional Language

3 answers

Afreena Rose Lince 4 years, 7 months ago

U will get it in the KSEEB Website

0Thank You

Tejas Gv 4 years, 9 months ago

I can't talk now. I'll call you back as soon as possible.

4Thank You

Amisha Rani 4 years, 9 months ago

Hii

2Thank You

ANSWER

What is nutrirtion

Posted by Bhawan Kumar 4 years, 9 months ago

CBSE > Class 10 > Science

2 answers

Tanvi @1201 4 years, 9 months ago

Nutrition is the process to transfer source of energy from outside to the body of an organism for maintaining living substance required for proper growth and maintenance of living body.

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Arvind J 4 years, 9 months ago

Nutrition is the process by which an organism takes food and utilizes it to get energy, for growth, repair, maintenance, etc. and then excreting the waste material from the body.

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ANSWER

Khilaafat aandolan ki shuruat kb hui

Posted by Zaid Khan 4 years, 9 months ago

CBSE > Class 10 > सामाजिक विज्ञान