Find 
of each of the functions expressed in parametric form in
We have given two parametric equation:
Let us Assume t= tan θ
So, 
Therefore,
sin x=sin 2θ
x=2θ ---(i)
Also,
Tan y=tan 2θ
y=2θ ---(ii)
from equation (i) and (ii)
y=x
now, differentiate w.r.t x
Hence, dy/dx=1
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