int(sec theta)/(tan^(2)theta)dx

int(sec theta)/(tan^(2)theta)d theta is.

(tan theta)/(sec theta+1)+(sec theta+1)/(tan theta)=2cos ec theta

int(sec^(2)theta d theta)/(tan^(3)theta+4tan theta)

(tan theta+sec theta-1)/(tan theta-sec theta+1)

int(sec theta)/(sec theta-tan theta)d theta

(sec theta+tan theta)/(sec theta-tan theta)+(sec theta-tan theta)/(sec theta+tan theta)

int_(0)^((pi)/(2))(sec theta-tan theta)d theta

Simplify: tan theta[(sec theta, tan theta),(tan theta, -sec theta)] + sec theta[(- tan theta, -sec theta),(-sec theta, tan theta)] .

Prove the following identity: (tan theta+sec theta-1)/(tan theta-sec theta+1)=(1+s int n eta)/(cos theta)