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If f(x) = (x + 4)/(x^2 + ax + b), and f(x) has two vertical asymptotes at x = 1 and x = 2, find the sum of a and b.

 May 9, 2021
 #1
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Vertical asymtopes when denominator = 0

 

(x-1)(x-2) = x^2 -3x+2       a = -3   b = 2

 May 9, 2021

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