I will get you started.
Let sin x = u
Then 7sin^2x -14sinx+2=-5 become
7u^2 - 14u = - 5
7u^2 - 14u + 5 = 0
Steps:
1. Solve for u.
2. Back- substitute for u.
3. Take the arcsin on both sides to find the angle(s).
You finish.
Answer:
{(-2, 5), (1, -1), (2, -2), (5, 2)}
Answer:
A
Step-by-step explanation:
5 + 2x = 3x - 1
