" 4.The value of "log[(sec theta+tan theta)(sec theta-tan theta)]" is "

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

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

If 5 sin theta= 3 , the numerical value of (sec theta - tan theta)/(sec theta + tan theta) is

If 5 sin theta = 3 , find the value of (sec theta -tan theta)/ (sec theta +tan theta) .

The locus of the point sec theta+tan theta,sec theta-tan theta is

Prove: sec theta + tan theta = 1/(sec theta - tan theta)

For theta_(1), theta_(2), ...., theta_(n) in (0, pi/2) , if ln(sec theta_(1)-tan theta_(1))+ "ln" (sec theta_(2)-tan theta_(2))+...... +"ln" (sec theta_(n)-tan theta_(n))+"ln" pi=0 , then the value of cos((sec theta_(1)+ tan theta_(1))(sec theta_(2)+tan theta_(2))....(sec theta_(n)+tan theta_(n))) is equal to

For theta_(1), theta_(2), ...., theta_(n) in (0, pi/2) , if In (sec theta_(1)-tan theta_(1))+ "In" (sec theta_(2)-tan theta_(2))+...+"In" (sec theta_(n)-tan theta_(n))+ "ln" pi=0 , then the value of cos((sec theta_(1)+ tan theta_(1))(sec theta_(2)+tan theta_(2))....(sec theta_(n)+tan theta_(n))) is equal to

For theta_(1), theta_(2), ...., theta_(n) in (0, pi/2) , if In (sec theta_(1)-tan theta_(1))+ "In" (sec theta_(2)-tan theta_(2))+...+"In" (sec theta_(n)-tan theta_(n))+ "ln" pi=0 , then the value of cos((sec theta_(1)+ tan theta_(1))(sec theta_(2)+tan theta_(2))....(sec theta_(n)+tan theta_(n))) is equal to