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Grade 12Integral Calculus

2 (square)

Q- integration (from sin x to 1) t f(t) dt = 1-sinx, for all x belongs to [ 0, pi/2) then f ( 1/root 3) is.

Profile image of kanika kaul
15 Years agoGrade 12
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4 Answers

Profile image of Anil Pannikar AskiitiansExpert-IITB
15 Years ago

Dear Kanika,

 

 differentiate both sides -

-sinx*f(sinx)* cosx = -cosx

or,  f(sinx) = 1/sinx

put sinx = X

then,  f(X) = 1/X

so, f(1/sqrt.3) = sqrt.3

 

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Anil Pannikar

IIT Bombay

Profile image of vikas askiitian expert
15 Years ago

differentiating  both sides wrt x

 we get

            -cosxsinxf(sinx)=-cosx

                      f(sinx)=1/sinx

                     f(t)=1/t

                      f(1/root3)=root3               ans

 

Profile image of Devasish Bindani
15 Years ago

the ans i got is root3*(1-sinx) if it is not correct then please send me the answer and correct explanation for it

Profile image of Vivek Nigam
15 Years ago

i think you shud revise bansal notes properly....you can easliy get the solution