Question

Write the equation –2x + 6y = 9 in polar form.

A. 7√(10)/20 = r cos(Ө – 72°)
B. 9√(10)/20 = r cos(Ө – 72°)
C. 9√(10)/20 = r cos(Ө – 108°)
D. 7√(10)/20 = r cos(Ө – 108°)

Find the distance between P1 (3, –185°) and P2 (–4, –94°) on the polar plane. Round your answer to the nearest thousandth.

Answer 1

first step is to write x and y in terms of r and theta

Answer 2

Sorry for late reply, but how would I go about doing this?

Answer 3

using the equations x=r cos(theta) and y=r sin(theta)