Question

cos 65°× cos25°- sin 65°× sin 25°

solve fastly​

Answer 1

Answer:

Cos 65✖cos25-cos25 ✖cos 65

=0

Step-by-step explanation:

because cos(90-A) =sinA

Answer 2

I think question is wrong, right question will be

cos 65°× sin 25°- sin 65°× cos 25°, but if the question is as you asked, then the answer is attached in image