Answer: C ) f ( x ) - g ( x ) = log3 5
160 is_% less than 200?
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Answer: C ) f ( x ) - g ( x ) = log3 5
In the half-angle formula for sine and cosine, notice that a plus/minus sign appears in front of each radical (square root). Whether your answer is positive or negative depends on which quadrant the new angle (the half angle) is in
