Calcular la integral trigonométrica $\int\frac{1}{\sin\left(x\right)-\cos\left(x\right)}dx$

Calcular la integral

$\int\frac{dx}{x^2+7x-6}$

Calcular la integral

$\int\frac{dx}{1-\cos x+\sin x}$

Calcular la integral

$\int\frac{1}{1-sin\left(x\right)}dx$

Calcular la integral

$\int\frac{dx}{1-sin\left(x\right)}$

Calcular la integral

$\int\frac{1}{1-sinx}dx$

Calcular la integral

$\int\frac{dx}{1+sinx+cosx}$

Calcular la integral

$\int\frac{dx}{1+\cos^2\left(x\right)}$