The answer is H=22 and the tape diagram is below with the step by step explanation
The answer is C 40 degrees
Cos^4(x) =
(cos²x)² =
(1-sen²x)² =
1² - 2*1*sen²x + sen^4x =
1 - 2sen²x + sen^4x
The answer Is 2/12 because if u multiply 1 x2 it is 2 then 3 x4 which is 12