Integration of hyperbolic function • Physics Forums

paulmdrdo1 · 2013-09-30T09:33:23+00:00

i don't know how start. please help. $\displaystyle\int xsech^2(x^2)dx$

Thread 'How to Find Critical Points of function f(x,y,z)'

Hi everybody If we have not any answers for critical points after first partial derivatives equal to zero, how can we continue to find local MAX, local MIN and Saddle point?. For example: Suppose we have below equations for first partial derivatives: ∂ƒ/∂x = y + 5 , ∂ƒ/∂y = 2z , ∂ƒ/∂z = y As you can see, for ∇ƒ= 0 , there are not any answers (undefined)

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MHB Integration of hyperbolic function

Thread 'How to Find Critical Points of function f(x,y,z)'

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