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Answer:Step-by-step explanation:We want to solve the equation,By the zero product property of multiplication,If, then,The general solution isFor, it meansis either in the third quadrant or fourth quadrant.So we first solve for,This implies that,In the third quadrant,In the fourth quadrant,This is a repeated solution.So the general solution isIf, thenPutting the two solutions together gives, where n is an integerThe correct answer is C....