Question

Plz see question in the photo and answer it

Answer 1

Step-by-step explanation:

First find out dy/d(theta)=2a(cos(theta)+cos(2theta))

now dx/d(theta)=2a(-sin(theta)-sin2(theta))

now divide both to get dy/dx

then apply formula of CosC +CosD

and SinC +sinD

the final answer should be -cot(3theta/2)