Use DeMoivre's Theorem to find the indicated power. Write the answer in rectangular form.4

A. -4
B. 4
C. 4i
D. -4i


Answer: A

Mathematics

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Solve the system.  x - y + 2z = -3-4x + 4y - 8z = -3  x + 3y + z = 6

A. (0, 3, -3) B. (-3, 3, 0) C. (-3, 0, 3) D. No solution

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A point lying on the terminal side of angle ? is given. Find the exact value of the indicated trigonometric function of ?.(-6, -7) Find cot ?.

A. - 
B.
C.
D. - 

Mathematics

Identify the polynomial as a monomial, binomial, trinomial, or none of these.-14z + 9

A. Monomial B. Binomial C. Trinomial D. None of these

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A student group consists of 17 people, 7 of them are girls and 10 of them are boys. How many ways exist to choose a pair of the same-sex people?

a.  66 b.  136 c.  70 d.  202

Mathematics