Relax

Respuesta :

(A) For ( t = 9π ): The reference angle is \( π \).

(B) For ( t = -5π ÷ 4 ): The reference angle is 1 ÷ 4π

(C) For t = 37π ÷ 6 The reference angle is 1÷6π.

(D) For \( t = 4 \): The reference angle is 0