When I factor[ 2cos (square) - 5cos -3], I get (2cos + 1)(cos - 3). 2cos + 1 = 0, 2cos = -1, cos = -0.5,. Using inv cos on calculator, I get 120 degree related angle.
Answer:
A) 4.18
B)7.65
Step-by-step explanation:
You have to use a calculator
See the attachment..........
9.5x3.14=29.83
n=29.83
This should be the correct answer if it is make me the brainiest please
