Answer:
4
Step-by-step explanation:
X should equal 2 and -2 (if it is just the x squared and not 3x)
X = 5
Solving steps:
1. 2x - 45 = - 35
2. 2x = - 35 + 45
3. 2x = 10
4. x = 5
Hope that helps
Answer:
x+-16
Step-by-step explanation:
<span>2cos^2x = sin2x
2cos^2x = 2sin x cos x
(2sin x cos x) / (2cos^2x) = 1
sin x / cos x = 1
tan x = 1
x = π/4</span>
