Question: For the function f(x) = -2 cos (3x - ?/2) -1, the phase shift is:a) ?/2 units to the rightb) ?/2 units to the leftc)

For the function f(x) = -2 cos (3x - ?/2) -1,

For the function f(x) = -2 cos (3x - ?/2) -1, the phase shift is:a) ?/2 units to the rightb) ?/2 units to the leftc) ?/6 units to the rightd) 3?/2 units to the right

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