You are given 2cos² (4θ - 1). You are asked to s<span>implify the expression by using a double-angle formula.
Apply the double angle of the cosine function
</span>cos2θ = 2cos² θ - 1
Rearranging the expression and then substituting them
2cos² θ = cos2θ + 1
2cos² (4θ - 1) = cos 2(4θ - 1) + 1
cos2(4θ - 1) + 1
Answer:
32x+540
Step-by-step explanation:
10 • (2x - y) <span> hope this helps!</span>
9 = 1 + 8x - 8 = 8x - 7
8x = 9 + 7 = 16
x = 16/8 = 2
x = 2.
Ummm...you need to either insert an image of your problem, or type it out If you want people to solve it....
