Given that y=(4x^2)lnx, find f"(x) when x=e^2
Product rule: first order derivative = 8xlnx+4x Second order derivative = 8lnx+12 Sub in e^2 , 16lne + 12 = 24
JH
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Edexcel January 2007 - Question 4 (Rates and Differential Equations)
The curve C has equation 2yx^2 + 2x + 4y - cos(πy) = 45. Using implicit differentiation, find dy/dx in terms of x and y
Use the chain rule to show that, if y = sec(x), then dy/dx = sec(x)tan(x).