Question

Cos (40° + 0) - Sin (50° - 0) is equal to
(a) 1 (b) 0 (c) Sin 20 (d) Sin^20​

Answer 1

Answer:

b)0

Step-by-step explanation:

Sin(90°-40+0)-sin(50°-0)

Sin(50°+0)-sin(50°-0)

0