Question

17)
sin (60˚ + θ) – cos (30˚ − θ) is equal to
(A) 2 cos θ (B) 2 sin θ (C) 0 (D) 1

Answer 1

Answer:

C)0

Step-by-step explanation:

Sin(60+theta)=cos(90-60-theta)

=Cos(30-theta)

Sin(60+theta)-cos(30-theta)

Cos(30-theta)-cos(30-theta)

=0