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answer QUESTION 19 Given the function y - 4 cos 2(x - It) + 1, find the period. OA. JC OB. 41 O C. 2T

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QUESTION 19 Given the function y - 4 cos 2(x - It) + 1, find the period. OA. JC OB. 41 O C. 2T OD. none QUESTION 20 Given the function y =4 cos 2(x it) + 1, find the phase shift. A. it right O B. 2n right O C. - right OD. 3TC right 2

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