Question

If xcos^3Φ+ysin^3Φ= sinΦcosΦ and x cosΦ= y sinΦ prove that: x^2 + y^2=1.​

Answer 1

Step-by-step explanation:

here, if we simplify

x=cos theta,

y=sin theta

so, cos ^2 theta + sin^2 thta= 1

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