Question

To compute the angle between radius vector and tangent of r=a(1+cosx) at x=30°

Answer 1

Step-by-step explanation:

We have tan ϕ = r dθ/dr = r / dr/dθ r = a (1 - cos θ) . So dr/dθ = a sin θ . ... The radius is given by ... To find the angle between this tangent and the radius vector just use the dot product.

The radius is given by [math]r = a(1-\cos \theta).[/math] In the Cartesian coordinate .