Find the exact value by using a half-angle identity.tan 75°
A. 2 + 
B. -2 + 
C. -2 - 
D. 2 - 
Answer: A
Mathematics
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Solve the problem.Let a = 2i + 3j and b= -5j. Find 
b ? a.
A. 6
B. 
C. -15
D. -10
Mathematics
Add.
A. 14,345 B. 6533 C. 6523 D. 6433
Mathematics
Use the Pythagorean Theorem to find the missing side of the right triangle.
A. 2
B. 2
C. 80
D. 116
Mathematics
The graph of an exponential function is given. Match the graph to one of the following functions.
A. f(x) = - 5-x B. f(x) = 5x C. f(x) = - 5x D. f(x) = 5-x
Mathematics