`lim_(theta->pi/2)(sectheta-tantheta)/(pi-2theta)`

lim_(theta rarr pi/2)(sec theta-tan theta)/(pi-2 theta)

Prove that lim_(theta rarr(pi)/(2))(2cos theta)/(pi-2 theta)=1

Prove that : (tan theta)/(sectheta+1)-(tantheta)/(1-sectheta)=2cosec theta

Prove that : (tan theta)/(sectheta+1)-(tantheta)/(1-sectheta)=2cosec theta

Evaluate the following limits : Lim_(theta to pi/2) (1-sin theta)/((pi/2-theta)cos theta)

Evaluate the following limits : Lim_(theta to pi/2)(cot theta)/(pi/2 - theta )

sqrt((1-sintheta)/(1+sintheta))={sectheta-tantheta , if -pi/2ltthetaltpi/2 and -sectheta+tantheta , pi/2ltthetalt(3pi)/ 2