Wednesday, 28 November 2018

calculus - Double Integral from Polar to Cartesian Coordinates

I know that when converting a double integral from Cartesian to Polar Coordinates, the Jacobian is equal to r and so we get dxdy = rdrdθ. But what if I wanted to go from Polar to Cartesian Coordinates? What would the Jacobian be?

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real analysis - How to find limhrightarrow0fracsin(ha)h

How to find lim without lhopital rule? I know when I use lhopital I easy get $$ \lim_{h\rightarrow 0}...