S
Sudeeptvd
18 Apr 18 8:54 PM

Please give Solutions for questions 8,9.

Replies to this post

S
Swapna

9 b

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A
Anju

Please see the answer

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A
Anju

xsin^3A+ycos^3A= sinAcosA
xsinA=ycosA
xsin^3A+xSinAcos^2A=sinAcosA
xsin^3A+xsinA(1- sin^2A)= sinAcosA
xsinA=sinAcosA
x=cosA
And y=sinA
x^2+ y^2 = 1

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