Question

Can someone please help me?
Write the expression as the sine, cosine, or tangent of an angle.

cos 112° cos 45° + sin 112° sin 45°

Answer 1

This is slightly similar to your last question, but different enough since it's a different identity this time.

cos(a)cos(b) + sin(a)sin(b) = cos(a - b)

Notice that there is "+" on the left side but a "-" on the right. Here, "a" is 112 and "b" is 45.

Answer 2

cos 67 degrees?

Answer 3

first find the values of given degrees

Answer 4

take multiple angle formulas in use

Answer 5

Yes! Good work! cos 67 is the answer!

Answer 6

@Darion well done...