Question

What is the distance between the following polar coordinates?: `(3,(17pi)/12), (5,(7pi)/8)`

Answer 1

6.15549

Explanation:

#cos 17pi/12 = cos 255=-0.2588

#sin 17pi/12= sin 255 =-0.9659

In cartesean coordinates the first point would be `(3 cos 17pi/12, 3 sin 17pi/12)` Or,(-0.77645, -2.89777)

Second point would be `(5cos 7pi/8, 5 sin 7pi/8)`,

Or, (-4.6194,1.9134)

Apply distance formula to get the distance= 6.15549.

Less laborious method would be