The slope of the normal to the curve x=a(θ–sinθ),y=a(1–cosθ) at θ=π2 is
0
1
-1
slope of normal=−1⎛⎜⎝dydxθ=π2⎞⎟⎠=−11=−1
The slope of the normal to the curve x=a(θ+sinθ),y=a cos θ at θ=π4 is