Question

WILL MARK

Answer 1

Answer:

  about 3.492

Step-by-step explanation:

The distance between points in polar coordinates can be found using the Law of Cosines. For vector magnitudes a and b, and angular difference C, the distance between them (c) can be found from ...

  c^2 = a^2 +b^2 -2ab·cos(C)

  = 7^2 +5^2 -2(7)(5)cos((217/180π -(-23/36)π)

  = 74 -70cos(332°) ≈ 12.1937

  c = √12.1937 ≈ 3.492

The distance between the given points is about 3.492 units.