3x Consider the integral dx: x2 + 4x + 8 This can be transformed into a basic integral by letting and = n du dæ After perfroming the substitution, you obtain the integral du The integral can be divided into two parts: du + du The answer in terms of x is +C . Submit Question

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A: solution:-f(x)=x2-1x+17(a) limx→∞f(x)=limx→∞xx-1xx1+17x=∞(b)limx→-∞f(x)=limx→-∞xx-1xx1+17x=-∞(c)limx...

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A: T=60+40ekt Substitute t=3 , T=90  90=60+40e3k90-60=40e3k3040=e3ke3k=343k=ln(34)k=-0.2883k=-0.096

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