# calculus

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a)find the first partial derivatives of f(x y)= x √1+y^2

b)find the first partial derivatives of f(x,y)= e^x ln y at the point (0,e)

• calculus -

f(x,y) = x√(1+y^2)
fx = (√1+y^2)
fy = xy/(√1+y^2)

Just treat the other variables as constants.

• calculus -

fx=e^xlny
fy=e^x/y

fx=e^(0)ln(e)=1
fy=1/e

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