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
Mathematics
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
Mathematics
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