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Let f(x) = x2 + 6 and g(x) = x+8/x. Find ( g o f)(-7) A. -57/7 B. 295/49 C. 63/55 D. 384/7
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gof(-7)=g(f(-7)) f(-7)=(-7)^2+6=49+6=55
g(55)=(55+8)/55=63/55
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