Question

find dy/dx if x=a(n-sinn) , y=a(1+cosn)​

Answer 1

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Answer 2

dx/dn=a(1-cosn)

dy/dn=-asin n

dy/dx=a(1-cosn)/-asin n

We have 1-cos n=2sin square n/2 & sin n=2sin n/2 cos n/2

Solving we get dy/dx=tan n/2

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