Is this the correct answer?

Question

Write 5 R - 7 U in polar form.

(A) 8.60 ∠ 54.46°

(B) 8.60 ∠ 125.54°

(C) 8.60 ∠ 216.54°

(D) 8.60 ∠ 305.54°

(E) None of these

For this I got; (A) 8.60 ∠ 54.46°. Is my answer correct?

Answer 1

Yes, it is.assuming that 5 R - 7 U represents the point (5, 7) which is the standard notation.