Find dy/dx for the following:

a. y = x^π
b. y = π^x
c. y = x^x
d. y = π^π
e. xy = π

1 answer

a) very easy
b) dy/dx = (π^x) * ln(π)

c) tricky, first ln both sides

lny y = ln(x^x) = xlnx
y'/y = x(1/x) + lnx
y' = x^x (1 + lnx)

d) what is the derivative of a constant?

e) xy = π
x dy/dx + y = 0
dy/dx = -y/x
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