\(\int_0^{\dfrac{\pi}{4}}\)\(\dfrac{cos2x-3sin^2x}{cos^2x}dx\)

\(\int_{\dfrac{\pi}{4}}^{\dfrac{\pi}{3}}\)\(\dfrac{cos2x}{sin^2x}dx\)

\(\int_0^{\dfrac{\pi}{4}}\) \(\dfrac{3sin^2x-4cos^2x}{cos^2x}dx\)

\(\int_2^5\) \(\dfrac{-x^4-3x^2+4}{x^2-1}dx\)

\(\int_0^1\)\(\dfrac{2x^3-3x^2+x-4}{x^2+2x+1}dx\)

\(\int_{-1}^0\) \(\dfrac{x^2-4x+4}{x^2-1}dx\)