Encontrar la derivada de $\frac{8}{y^2-6y+9}+\frac{4}{y-3}$

Calcular la integral

$\int xdx$

Calcular la integral

$\int\left(x\cdot\cos\left(2x^2+3\right)\right)dx$

Calcular la integral

$\int x\left(x^2-3\right)dx$

Calcular la integral

$\int x^2\sin\left(x\right)dx$

Calcular la integral

$\int x^2\cos\left(2x\right)dx$

Calcular la integral

$\int x^2\ln\left(x\right)dx$

Calcular la integral

$\int\left(\frac{x}{2}+3\right)^2dx$