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Find Y so that the points A(0 , 0), B(2 , 2) and C(-4 , Y) are the vertices of a right triangle with hypotenuse AC.
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RRB Other Question
For what value of the constant K does the system of equations 2x - y = 4 and 6x-3y=3K have an infinite number of solutions?
Find M so that the lines with equations -2x + My = 5 and 4y + x = -9 are perpendicular