How do you express partial fractions of a proper fraction that has a denominator of (x-2)(x+1)^2
A/(x-2) + B/(x+1) + C/(x+1)^2
RM
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A circle with centre C has equation x^2 + y^2 + 2x + 6y - 40 = 0 . Express this equation in the form (x - a)^2 + (x - b)^2 = r^2. Find the co-ordinates of C and the radius of the circle.
Integration