Perform the indicated operations and express your answer in the form a + bi. 

A. 10i
B. 10
C. -10i
D. -10


Answer: A

Mathematics

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Provide an appropriate response.Write  as a whole or mixed number in lowest terms.

A. 25
B.
C.
D.

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Verify the identity. = cos x + cot x

What will be an ideal response?

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Find the center of the hyperbola. -  = 1

A. (0, 0) B. (0, 4) C. (6, 0) D. (6, 4)

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Simplify. Assume that all variables represent positive real numbers.(3 + 9)(7 - 5)

A. 18 + 78
B. 108 + 48
C. 18 + 48
D. 66

Mathematics