Perform the indicated operations. Write the resulting complex number in standard form. 

A. 3i
B. -3
C. -5i
D. -3i


Answer: A

Mathematics

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B.
C.
D.

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Use the definition or identities to find the exact value of the indicated trigonometric function of the acute angle ?.sin ? =  Find csc ?.

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Use substitution to factor the trinomial.x4 - 7x2 + 12

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