Perform the indicated operations and simplify.
A. 
B. 
C. - 
D. 
Answer: D
Mathematics
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Evaluate or simplify the given expression.cos(2 cos-1 x)
A. 2x2 + 1 B. 2x2 - 1 C. 1 D. -1
Mathematics
Convert to polar coordinates. Express the answer in radians, using the smallest possible positive angle.(3, -3
)
A. 
B. 
C. 
D. 
Mathematics
Find the domain and range of the relation.{(-6,9), (3,-5), (5,-3), (1,-2), (7,-8)}
A. D = {-3, -2, -8, 9, -5}; R = {5, 1, 7, -6, 3} B. D = {5, 1, 7, -6, 3}; R = {-3, -2, -8, 9, -5} C. D = {-8, -6, 9, 3, -5}; R = {5, -3, 1, -2, 7} D. D = {5, -3, 1, -2, 7}; R = {-8, -6, 9, 3, -5}
Mathematics
Express the radical in simplified form.
A. 4
B. 2 + 
C. Not a real number
D. 2
Mathematics