CBSE > Class 12 > Mathematics | CBSE Board | Homework Help

Dear akansha jii pehle f'(x) kro Fir for increasing function f'(x) >0 Uska bdd value put karke factoize kr doo jo factor milaga usi pa function inc. Or dec. Hoga

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find integration of tan^2x sec^2 X / 1-tan ^6x DX

Posted by Soumya Rath 4 years, 6 months ago

CBSE > Class 12 > Mathematics

1 answers

Harsh Vardhan 4 years, 6 months ago

Let t= tan^3x then this problem convert into 1/3* 1/ 1+ t^2 dt Answer is 1/3 tan^-1 (tan^3x)

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Exercise 7.5 Question 1 Integrate x/{(x+1)(x+2)} Why does this give different answers when we integrate by method of making denominator into squares, and when we integrate by using partial fraction decomposition formula?

Posted by Bling Ting 4 years, 6 months ago

CBSE > Class 12 > Mathematics

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Aaplog ka practical kab h insta p btao Ff_lover.05

Posted by Sawan Vishwakarma 4 years, 6 months ago

CBSE > Class 12 > Mathematics

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An icecream manufacturing company is planning to make right circular conical cup of least inner curved surface area to contain 50cm cube of icecream .If r,h,l,c and theta are respectively radius,height,slant height,curved surface area and semi vertical angle of conical shaped icecream inside the conical cup.(i) find the relation between h and r is h= (ii)the relation between c and r. (iii)if csquare = D dad/dx

Posted by Sherma Subha 4 years, 6 months ago

CBSE > Class 12 > Mathematics

1 answers

Vivek Chaurasia 4 years, 6 months ago

Dear ye question class 12 ka tho nhii h??... fir vi thoda long method ha yrr espa possible nhi h?

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What is the derivative of sin^-1√3x?

Posted by Kajal Gupta 4 years, 6 months ago

CBSE > Class 12 > Mathematics

1 answers

Kanishk Gupta 4 years, 6 months ago

√3/√(1-3x^2) is the derivative of sin^-1√3x.

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Is there anyone from KALYANI CENTRAL MODEL SCHOOL?

Posted by Rahul Yadav 4 years, 6 months ago

CBSE > Class 12 > Mathematics

1 answers

Vivek Chaurasia 4 years, 6 months ago

Why...? ??? Kha pr ha ye?

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I am totally confused in vector and 3d Geometry... NCERT is enough for this chapter or not????

Posted by Rahul Yadav 4 years, 6 months ago

CBSE > Class 12 > Mathematics

5 answers

Cute Girl 4 years, 6 months ago

Give first priority to NCERT

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Prakhar Gupta 4 years, 6 months ago

No, ncert is not enough. If you look at previous years questions, you find that questions which are not in ncert. So for better score also solve questions of other books with ncert.

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Pandey Jee 4 years, 6 months ago

Ncert is best and enough

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Joseph Stalin 4 years, 6 months ago

No ncert is not enough

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Aman Yadav 4 years, 6 months ago

Bro ncert enough hai

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If xy=e^x-y, then prove that dy/dx=y(x-1) /x(y-1)

Posted by Kavya P 4 years, 6 months ago

CBSE > Class 12 > Mathematics

1 answers

Sherma Subha 4 years, 6 months ago

given: xy = {e}^{x - y}xy=ex−y \begin{gathered}\frac{dy}{dx} = \frac{y(x - 1)}{x(y + 1)} \\\end{gathered}dxdy=x(y+1)y(x−1) solution: taking log on both side, log(xy) = log( {e}^{x - y} )log(xy)=log(ex−y) differentiate w.r.t x. \frac{d(logxy)}{dx} = \frac{d}{dx} \times log( {e}^{x - y} )dxd(logxy)=dxd×log(ex−y) \frac{d}{dx} \times ( log(x) + log(y) ) = \frac{d}{dx} \times log( log( {e}^{x - y} ) )dxd×(log(x)+log(y))=dxd×log(log(ex−y)) \frac{1}{x} + \frac{1}{y} \times \frac{dy}{dx} = \frac{1}{ {e}^{x - y} } - \frac{dy}{dx}x1+y1×dxdy=ex−y1−dxdy \frac{1}{y} \times \frac{dy}{dx} + \frac{dy}{dx} = \frac{1}{ {e}^{x - y} } - \frac{1}{x}y1×dxdy+dxdy=ex−y1−x1 \frac{dy}{dx} \times ( \frac{1}{y} + 1) = \frac{1}{ {e}^{x - y} } - \frac{1}{x}dxdy×(y1+1)=ex−y1−x1 \frac{dy}{dx} = \frac{1}{ {e}^{x - y} } - \frac{1}{x} \div ( \frac{1}{y} + 1)dxdy=ex−y1−x1÷(y1+1)

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If A is a square matrix of order 3 and | A|= 7. Write the value of | adj. A|.

Posted by Rajat Yadav 4 years, 6 months ago

CBSE > Class 12 > Mathematics