数学

1. $\int kdx=kx+C　(k是常数)$2. $\int x^{\mu } dx=\frac{x^{\mu+1} }{\mu+1} +C　(\mu\ne -1)$3. $\int \frac{dx}{x} =\ln_{}{\left |x \right | } +C$4. $\int \frac{1}{1+x^{2} } dx=\arctan x+C$5. $\int \frac{1}{\sqrt{1-x^{2} } } dx=\arcsin x+C$6. $\int \cos xdx=\sin x+C$7. $\int \sin xdx=-\cos x+C$8....