Question

If cos (90°- A) =0 then Sin (A+B) is.
a. 0.
b. 2.
c. 3.
d. None of the above​

Answer 1

Answer:

If cos (90°- A) =0 then Sin (A+B) is.

a. 0.

b. 2.

c. 3.

d. None of the above

Step-by-step explanation:

answer is cos 2b