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studentxlol
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Homework Statement
Find dy/dx and determine the exact x coordinate of the stationary point for:
(a) y=(4x^2+1)^5
(b) y=x^2/lnx
Homework Equations
The Attempt at a Solution
(a) y=(4x^2+1)^5
dy/dx=40x(4x^2+1)^4
40x(4x^2+1)^4=0
Find x... How?
(b) y=x^2/lnx
dy/dx=2xlnx-x^2 1/x / (lnx)^2
2xlnx-x^2 1/x / (lnx)^2=0
Find x... How?