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Is ncert sufficient to score good marks in boards

Posted by Prjjd Dd 6 years ago

CBSE > Class 12 > Mathematics

2 answers

Ekta Gandhi 6 years ago

Noo.. not at all

0Thank You

Isha Bhardwaj 6 years ago

Yaa for scoring gud marks at least above 90 absolutely ncert is sufficient......

3Thank You

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If A is any square matrix of order 3into3 such magnitude of A is equal to 3 then the value of magnitude of adjA is?

Posted by Banty Kumar 6 years ago

CBSE > Class 12 > Mathematics

1 answers

Arkaprobho Dutta 6 years ago

Magnitude of adjA= |A|^(3-1)=(3)^(3-1)=3^2=9

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ANSWER

Date sheet

Posted by Uday Shankar 6 years ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Solve: Integration 0 to 1 sin(lnx)lnx dx

Posted by Swapnil Ghosh 6 years ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Integrate x^2/x^2+1

Posted by Riti Bansal 6 years ago

CBSE > Class 12 > Mathematics

2 answers

Anmol Gupta 6 years ago

Integ(x^2/x^2+1)dx Integ(x^2+1-1/x^2+1)dx Integ(x^2+1/x^2+1)dx - integ(1/x^2+1)dx Integ(1)dx - integ(1/x^2+1)dx X- log(x^2+1)+c

0Thank You

Swapnil Ghosh 6 years ago

Integ(x^2/x^2+1)dx =integ(x^2+1-1/x^2+1)dx =integ(x^2+1/x^2+1)dx -integ(1/1+x^2)dx =integ(dx)-integ(1/1+x^2)dx = x-tan^-1(x)+C.

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How to solve determinants without expansion.. Only using properties easily..is there any tricks

Posted by Vyshnavi T P 6 years ago

CBSE > Class 12 > Mathematics

1 answers

Swapnil Ghosh 6 years ago

By using properties of determinants. It is written in detail in your NCERT textbook

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Is partial fraction in integration part of syllabus 2019-20

Posted by Aniruddha Arela 6 years ago

CBSE > Class 12 > Mathematics

2 answers

Swapnil Ghosh 6 years ago

Oh yeah

0Thank You

Aman Kumar 6 years ago

Yes , of course

1Thank You

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Suppose a and b are inversely proportional with a constant of proportionality equal to 128. Find b when a = 2

Posted by Aparna Saravanakumar 6 years ago

CBSE > Class 12 > Mathematics

1 answers

Anmol Gupta 6 years ago

b=k/a a=2 k=128 b=128/2 b=64

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Vector a,b,c reresent the sides of a triangle taken in order then write the value of vector a+b+c.

Posted by Anubhav Kumar 6 years ago

CBSE > Class 12 > Mathematics

1 answers

Shivanshu Pandit 6 years ago

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ANSWER

Graph of arcsin(sin10) Ans. 3π-10

Posted by Aditya Singh 6 years ago

CBSE > Class 12 > Mathematics

0 answers

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Derevation of sin2x

Posted by Sujal Garg 6 years ago

CBSE > Class 12 > Mathematics

8 answers

Rohan Dhiman 6 years ago

Sin(2x) = d/dx. Sin (2x) = 2cos(2x)

1Thank You

Anmol Gupta 6 years ago

y=sin2x dy/dx=d(sin2x)/dx.d(2x)/dx dy/dx=cos2x.2 dy/dx=2cox2x

0Thank You

Himanshu Khatiyan 6 years ago

2cos2x

0Thank You

Swapnil Ghosh 6 years ago

It will be 2cos2x

0Thank You

Anushree Agarwal 6 years ago

2 cos 2x

1Thank You

Tanmay Agarwal 6 years ago

-cos 2x/2

0Thank You

Aadi Ahluwalia 6 years ago

Its 2 cos x

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Aadi Ahluwalia 6 years ago

What sin 2x ki derivatives

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The perimeter of a rectangular park and square park is equal. If the length of the rectangel park is 20 more the its breath and side of the square is 15cm , find the length of the rectangular park.

Posted by Mehil Kèshri 6 years ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Blue print of question paper?? Which cheater contain how much marks??

Posted by Diksha.Joshi. Khatima 6 years ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Emw

Posted by Vikas Yadav 6 years ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Domain and range of sinx and cosx

Posted by Kiran Yadav 6 years ago

CBSE > Class 12 > Mathematics

2 answers

Rohan Dhiman 6 years ago

Domain. Range Sin -1 x [-1,1]. [-π÷2 , π÷2] Cos -1 x. [-1,1]. [0,π]

0Thank You

Aniruddha Arela 6 years ago

domain of sinx = [-1,1] range of sinx = -90 degree,90 degree] domain of cosx = [-1,1] range of cosx = [0,180 degree]

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ANSWER

Tricks to solve questions of vector algebra

Posted by Satyam Kumar 6 years ago

CBSE > Class 12 > Mathematics

1 answers

Mahender Singh 6 years ago

All concepts clear carefully

0Thank You

ANSWER

Maths is important to our life? Explain?

Posted by Dhivyabharathi Valavan 6 years ago

CBSE > Class 12 > Mathematics

1 answers

Abhimanyu Kaul 6 years ago

Yes ....but only in practicality....maths is not about sitting and solving ques to get to iit !!

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Let R be a relation over the set of natural bumbers defined by : R- {(a,b):a,b belongs to N and a>b

Posted by Akshit Chawla 6 years ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Find the maximum area of an isosceles triangle inscribed in a eclipse x²/a² +y²/b² = 1

Posted by Deepanshu Kaushik 6 years ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Find matrix A if[a11=2,a12=4,a21=1,a22=3].A[a11=0,a12=2,a21=1,a22=3]= [a11=1,a12=6,a21=3,à22=-2]

Posted by Monisha Bhaskar 6 years ago

CBSE > Class 12 > Mathematics

1 answers

... ... 6 years ago

2 4 × 0 2 1 3 1 3 And A is 2×0+4×1 2×2+4×3 1×0+3×1 1×2+3×3 0+4 4+7 0+3 2+9 4 11 3 7

1Thank You

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Maths activity ka Link hai kisi ke paas

Posted by Lky Kumar 6 years ago

CBSE > Class 12 > Mathematics

1 answers

Swapnil Ghosh 6 years ago

Haan bhai. Mere paas do pdf hain. Chahiye to batao. Bhej doon kya??

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ANSWER

8 10 to the power 1 + x 4 raise to the power 1 - x upon 2 raise to the power x

Posted by Sneha Gupta 6 years ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Hhwh

Posted by Priyanshu Jain 6 years ago

CBSE > Class 12 > Mathematics

1 answers

Priyanshu Jain 6 years ago

Uduudd

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Mathematics induction kya h

Posted by Kranti Kk 6 years ago

CBSE > Class 12 > Mathematics

0 answers

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Integration of tan power 4√x•sec square √x by √x

Posted by Amit Khurana 6 years ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Differentiation of modulus x-1

Posted by Talib Khan 6 years ago

CBSE > Class 12 > Mathematics

1 answers

... ... 6 years ago

0Thank You

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1/x(x4-1) integrate

Posted by Diwakar Kumar 6 years ago

CBSE > Class 12 > Mathematics

1 answers

Talib Khan 6 years ago

Fughiihio

1Thank You

ANSWER

integration of sec square (7- 4x)dx

Posted by Suruchi Karnati 6 years ago

CBSE > Class 12 > Mathematics

2 answers

Aman Kumar 6 years ago

I think , u have missed out minus(-) ...??...its ---> - tan( 7-4x)/4....

0Thank You

Diwakar Kumar 6 years ago

tan(7-4x)/4 is a answer

4Thank You

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Cos^-1 (cos 13π/6)

Posted by Saubhagya Gupta 6 years ago

CBSE > Class 12 > Mathematics

2 answers

Aman Gahlot 6 years ago

Pi/6

0Thank You

Muskan Jangra 6 years ago

=13pi/6 but pvb of cos^ is [0,pi] so cos^-1[cos2pi + pi /6]= cos ^-1(cos pi/6)=pi/6 ans.

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Differentuation of tan(π/4-x)

Posted by Nikunj Singh 6 years ago

CBSE > Class 12 > Mathematics

1 answers

Harsh Yadav 6 years ago

-sec²(π/4-x)

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ANSWER

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