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Calculus (Help)

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Also I would like to know how to set this problem up in finding the answer:

Find the second derivative.
y= sqrt(3x+4)

Thanks, P.S. I tried taking 3x+4 and squaring it to the 1/2. I thought that might've been the same, then I took the derivative of that and got 1/2(3x+4)^(-1/2), then took the 2nd derivative of that and got -1/4(3x+4)^(-1.5). Apparently this isn't right. What am I doing wrong?


i think this is correct. You forgot the chain rule. You also have to multiply by the derivative of 3x+4


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