Rewrite with only sin x and cos X. cos 2x + sin x
A) 1 + 2 sin^2 X + sin x
B) 1 + 3 sin^2
C) 1 + 3 sinx
D) 1 - 2 sin^2 x + sin x X​

One expression below in undefined, and the other expression has a well defined value. which expression is undefined and explain why it has no value. which expression is defined? what is the value of that expression and how do you know? what is a different expression using a trig inverse function that is also undefined?

How many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.

Find the difference (8ab+a+2) - (3ab+6)