Use the fact that the trigonometric functions are periodic to find the exact value of the expression. Do not use a calculator.cos 

A.
B. - 
C.
D. - 


Answer: D

Mathematics

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A. -2
B. -2i
C. 2
D. 2i

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P(N = 5); N is Poisson (4.7).

Find the probability for the given random variable.

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Find the LCM of the expressions.6a, 12a2

A. 6a2 B. 36a3 C. 6a3 D. 12a2

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Find the equation of the transverse axis of the hyperbola. 9(x - 5)2 - 16(y + 1)2 = 144

A. x = 9 B. y = -1 C. y = 1 D. x = -1

Mathematics