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.
I’m sorry I’m kinda confused on what you mean could you better say in the comments and I’ll also answer in there (:
20% of 60 is 12
60/300 = 20%
The friend is incorrect because that is 20% of 300 not 60
Answer:
there isn't a math question
Step-by-step explanation:
D because square roots of negative numbers are imaginary
