These are direct descendent of [url=https://www.geogebra.org/m/x39ys4d7#material/rqxeesrz]Monkey Rule 4[/url] and [url=https://www.geogebra.org/m/x39ys4d7#material/nwcsfbgw]Monkey Rule 5[/url].[br][br][b]Lucifer's 4th Rule:[/b] The antiderivative of [code]e^x[/code] is [code]e^x+c[/code], or in mathematical notation:[br][br][math]\int e^xdx=e^x+c[/math][br][br][b]Lucifer's 5th Rule:[/b] We'll just list the mathematical notation for these rules about the antiderivatives of sine and cosine:[br][br][math]\int\sin\left(x\right)dx=-\cos\left(x\right)+c[/math][br][br][math]\int\cos\left(x\right)dx=\sin\left(x\right)+c[/math]