exam
Maths Puzzle
Numerical Ability
Simplify (-2a^2 b^3)^2/(2a^2 b)^3
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exam Other Question
find the center and radius of the circle given by x(squared)- 4x + y(squared) -6y + 12 = 0
Let P = (-25,0), Q = (25,0), and R = (-24,0). Find an equation for the circle that goes through P, Q, and R. Find at least two ways of showing that angle PRQ is right, and find coordinates for the three other points R that would have made angle PRQ right.