What is the radian measure of the angle formed by a segment from the center of the unit circle to a point on the circumference that is 1/4 of the way around the circle counterclockwise?
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What values of x make the square root function y = √x increase from 0 to the largest possible value? Is this function one-to-one?
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What is the product of two consecutive positive integers if the sum of their squares is 85?