Verify the identity.
+ 1 = 2 sin2 x
What will be an ideal response?
+ 1 = 
+ 1 = 
- 
+ 1 = sin2x - 
+ 1 
= 2 sin2x
Mathematics
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Use a sum or difference identity to find the exact value.sin(-15°)
A. 
B. 
C. 
D. 
Mathematics
Solve the equation.
= 
+ 4
A. -5 B. no solution C. 5 D. 5, -5
Mathematics
Solve the problem.Let B = [-1 6 6 -3]. Find -3B.
A. 
B. 
C. 
D. 
Mathematics
Simplify.92 - 2 × 2
A. 98 B. 77 C. 158 D. 126
Mathematics