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S
Swapna
9 b
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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
0
A
Anju
Please see the answer
0