Question

For positive acute angles A and B, it is known that sin A = 24/25 and cos B = 11/61

Find the value of cos(A + B) in simplest form

Answer 1

Rounded to 0.42. Not rounded: 0.41729656785

Explanation:

24/25 = 0.96

11/61 = 0.180327869

Add those together.

Answer for that: 1.14032787

Find the cos for the answer.

Which is 0.41729656785 to 0.42