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Guys, it will be appreciable if you stopped challenging others and help them focus on their exams. Students are already very anxious and posting out-of-the-box questions will not help them much. Instead try to clear their doubts and make them feel at ease.?

Posted by Dinesh D 6 years, 7 months ago

CBSE > Class 12 > Mathematics

2 answers

The Unpredictable Guy 6 years, 7 months ago

But i understand.

The Unpredictable Guy 6 years, 7 months ago

It was any easy question! And it is used in a question in ncert in differentiability

ANSWER

a-b=3 ,b-c=5 then find a^2+b^2 + c^2 -ab-bc-ca

Posted by Sambhaji Thakur 6 years, 7 months ago

CBSE > Class 12 > Mathematics

1 answers

Shubham Aggarwal 6 years, 7 months ago

a-b=3 Sq. Both sides (a-b)^2=9 a^2+b^2-2ab=9--------------(i) b-c=5 Sq. Both sides (b-c)^2=25 b^2+c^2-2bc=25-----------(ii) Now, adding a-b=3 & b-c=5 We get, a-c=8 Sq. Both sides (a-c)^2=64 a^2+c^2-2ac=64--------------(iii) Now, adding eq (i) (ii) (iii) We get 2a^2+2b^2+2c^2-2ab-2bc-2ca=98 Taking 2 common from L.H.S 2(a^2+b^2+c^2-ab-bc-ca)=98 Dividing by 2 both sides we get, a^2+b^2+c^2-ab-bc-ca=49

ANSWER

What is the weightage of every chapter in maths? I mean each chapter!!

Posted by Gautãm . 6 years, 7 months ago

CBSE > Class 12 > Mathematics

2 answers

Anchal Yadav 6 years, 7 months ago

In this app go to cbse syllabus and choose subject math there u can check the weightage of each chapter

Shreya Shukla 6 years, 7 months ago

You can download it from Google... Just type... Blue print of class 12 mathematics 2019

ANSWER

Cos-1(3/5Cosx+4/5Sinx)

Posted by Anchal Yadav 6 years, 7 months ago

CBSE > Class 12 > Mathematics

1 answers

Dinesh D 6 years, 7 months ago

Let cos w= 3/5, so sin w=4/5, put in question to get cos-1(cosw.cosx+sinw.sinx). Inside bracket, we get cos(w-x). So after solving inverse, answer is w-x. Put value of w as cos-1(3/5) OR sin-1(4/5).

ANSWER

Sin inverse (1-x)-2sin inversex=pie by 2

Posted by Kajal Kajal 6 years, 7 months ago

CBSE > Class 12 > Mathematics

1 answers

Honey 8 6 years, 7 months ago

Misc..qs. 16

ANSWER

X^x^x differentiate with respect to x

Posted by Harmanjot Kaur 6 years, 7 months ago

CBSE > Class 12 > Mathematics

1 answers

Aditya Singh 6 years, 7 months ago

Take log and solve it

ANSWER

2.2 question 13

Posted by Siddharth Tiwari 6 years, 7 months ago

CBSE > Class 12 > Mathematics

1 answers

Honey 8 6 years, 7 months ago

Check app you'll get the soln. Any prob in understanding?

ANSWER

Find approx of (0.082)^1/2

Posted by Lovepreet Singh Bajwa 6 years, 7 months ago

CBSE > Class 12 > Mathematics

1 answers

Honey 8 6 years, 7 months ago

X= 81 and ∆x = -0.001

ANSWER

Does ques will come from cbse sample paper....

Posted by Aryaman Singh Tomar 6 years, 7 months ago

CBSE > Class 12 > Mathematics

1 answers

Dinesh D 6 years, 7 months ago

It may/ may not but the pattern of sample paper will be same as board so that you can relate and understand which questions are sure shot and which questions can be asked. For preparation, go thru last 10 years questions and NCERT, be thorough with them.

ANSWER

Guys anybody tell me important topics for preparation so that i can score vry gud marks plzzz anybody help.

Posted by Harika Muskan 6 years, 7 months ago

CBSE > Class 12 > Mathematics

5 answers

The Unpredictable Guy 6 years, 7 months ago

From Relation: Binary operation/inverse, injective/surjective functions ITF: basically anything Definite and indefinite integration Vectors 3D - 10 marks weightage

J S 6 years, 7 months ago

Lpp confirm

Ishmeet Kaur 6 years, 7 months ago

Bayes theorem, minima maxima, solving matrix equation, linear differential, homogeneous function

Harika Muskan 6 years, 7 months ago

Ya that is main requirement bt can u tell me some topics that r damn sure to come in exam.

Akshata Gite 6 years, 7 months ago

Study hard

ANSWER

Determinant property wale kse prepare kre??? Its too much tough...

Posted by J S 6 years, 7 months ago

CBSE > Class 12 > Mathematics

2 answers

Dinesh D 6 years, 7 months ago

Questions mein bas 1-2 property lagao taaki determinant ke 1 row ya column ke saare elements 1 ho jaye. Phir unme se 2 ones ko 0 banado using property. Phir expand karo, easy hoga kyunki ek hi 1 hai uss row ya column mein. Answer automatically expansion ke baad aa jayega. Kuch khaas karna nhi. Bas har ek property aur uski unique application samajh lo

Ankush Saini 6 years, 7 months ago

With the help of YouTube

ANSWER

vol. of cylinder

Posted by Chirag Jindal 6 years, 7 months ago

CBSE > Class 12 > Mathematics

1 answers

J S 6 years, 7 months ago

πr^2h

ANSWER

How I am preparing for exam before 2 days of exam

Posted by Akash Kumar 6 years, 7 months ago

CBSE > Class 12 > Mathematics

1 answers

Jyoti Balhara 6 years, 7 months ago

Do only cbse imp. Q

ANSWER

How are you'all preparing for maths?from which book

Posted by Kanika Agrawal 6 years, 7 months ago

CBSE > Class 12 > Mathematics

5 answers

Dinesh D 6 years, 7 months ago

NCERT and previous year questions

Shesh Ram 6 years, 7 months ago

Evergreen is best for preparation

Abhishek Kumar 6 years, 7 months ago

Revision from ncert. And how r u preparing? Share some tips.

Akash Kumar 6 years, 7 months ago

The best book for your preparation of exams is arihant chapter wise solution book before 2 days for exam

J S 6 years, 7 months ago

From satish sample paper of 10 year

ANSWER

What are the various answers we can get for integral cos2x/(cosx+sinx)^2

Posted by Himansha Atluri 6 years, 7 months ago

CBSE > Class 12 > Mathematics

1 answers

Dinesh D 6 years, 7 months ago

1/2 log(1+sin2x) OR log(cosx+sinx)

ANSWER

Long ques konse konse ch me se aate h ???

Posted by Navya Singh 6 years, 7 months ago

CBSE > Class 12 > Mathematics

3 answers

Shivam Keshri 6 years, 7 months ago

Definite integrals se limit as a sum, matrices, maxima & minima, LPP , Probability, Area under the curve

Gudiya Yadav 6 years, 7 months ago

Lpp sa confirm hhhh Agr or jnna hhh toh go to maths by rohit solanki sir....

Sadhil Gupta 6 years, 7 months ago

Sab kuch

ANSWER

y=e^sinx +(tanx)^x

Posted by Sanket Kumar 6 years, 7 months ago

CBSE > Class 12 > Mathematics

3 answers

Honey 8 6 years, 7 months ago

Yes And put log on both side.

Mohan Lal 6 years, 7 months ago

This method will used in

Mohan Lal 6 years, 7 months ago

u = e^sinx and v =tanx^x

ANSWER

if Y=√x+1 - √x-1 then prove that (x^2 -1)d^2 y /dx^2 +x dy/dx - 1/4 y =0. Please solve it fast and send me the solution.

Posted by Abhishek Kumar 6 years, 7 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

10 year k solve paper lagane p kitne marks tk a jayenge??

Posted by J S 6 years, 7 months ago

CBSE > Class 12 > Mathematics

1 answers

Krishna Kumar 6 years, 7 months ago

Agar sare questions aate hai achhe se then 80+ for sure

ANSWER

Blue print of math paper

Posted by Ajay Maharaj 6 years, 7 months ago

CBSE > Class 12 > Mathematics

1 answers

Sadhil Gupta 6 years, 7 months ago

Take a print in blue colour

ANSWER

Maths ka mainly ncert se ata h kya ya kuch or bhi krna padega

Posted by Garima Chauhan 6 years, 7 months ago

CBSE > Class 12 > Mathematics

2 answers

Dinesh D 6 years, 7 months ago

Previous year questions zaroor karna

Abhishek Kumar 6 years, 7 months ago

Ncert s approx 70% -80% tk aata h... Rest conceptually best questions rhega.... Concept or formula remember rhna chuie. That's enough!

ANSWER

A point on hypotenuse of a triangle is at a distance a and b from the side of triangle. Show that the maximum length of the hypotenuse is (a2/3+b2/3)3/2

Posted by Garima Jawla 6 years, 7 months ago

CBSE > Class 12 > Mathematics

1 answers

Garima Chauhan 6 years, 7 months ago

I know this one prr me apka kaise do kyuki its hard to write.

ANSWER

Sample paper 2019 of maths is imp.?

Posted by Gaurav Sood 6 years, 7 months ago

CBSE > Class 12 > Mathematics

1 answers

Jyoti Balhara 6 years, 7 months ago

Yes it will give u idea of paper

ANSWER

Misellencios ke questions bhi ate hai kya exam mai?

Posted by Harsha Phansalkar 6 years, 7 months ago

CBSE > Class 12 > Mathematics

3 answers

J S 6 years, 7 months ago

10 year k paper solve kr lu 50 marks a jayenge??

Jayant Singh Aswal 6 years, 7 months ago

Aap sare mordern ke example or ncrt karlo bas itna hi khafi hai 80 plus score ke liye

Sid Sharma 6 years, 7 months ago

Yup

ANSWER

e ki powerx/a ki power x. Integration

Posted by Nitesh Jaiswal 6 years, 7 months ago

CBSE > Class 12 > Mathematics

1 answers

Nitesh Jaiswal 6 years, 7 months ago

No wrong ans

ANSWER

Ytany-xtany-xy/ytany. Differential equation

Posted by Nitesh Jaiswal 6 years, 7 months ago

CBSE > Class 12 > Mathematics

1 answers

Nawal Yadav 6 years, 7 months ago

Divide separetly by ytany

ANSWER

Mark based order of chapters

Posted by Sai Kiran P 6 years, 7 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Show that the altitude of the right circular cone of maximum volume inscribed in a sphere of radius r is 4r/3. Also find the maximum volume in terms of the sphere.

Posted by Nishant Brathi 6 years, 7 months ago

CBSE > Class 12 > Mathematics

1 answers

Gaurav Seth 6 years, 7 months ago

A sphere of fixed radius (r) is given.
Let R and h be the radius and the height of the cone respectively.

Hence, it can be seen that the altitude of the right circular cone of maximum volume that can be inscribed in a sphere of radius r is 4r/3.

ANSWER

Find the point on the curve y^2=8x for which abcissa and ordinate change at the same rate

Posted by Jasmeet Kaur 6 years, 7 months ago

CBSE > Class 12 > Mathematics

2 answers

Honey 8 6 years, 7 months ago

In that dy/dt = dx/ dt .. just simply differentiate

Honey 8 6 years, 7 months ago

( 2,4 )

ANSWER

Please give the seperate weightage of the chaper in mathematics ?

Posted by Aniket Mehta 6 years, 7 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

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