What is the value of `9cot^2theta-9cos e c^2theta` ?

What is the value of 9cot^(2)theta-9cos ec^(2)theta?

What is the value of (1-cos^2theta)cos e c^2theta ?

The value of 9cot^2theta-9 cosec^2 theta is ……

What is the value of (tan^2theta-sec^2theta)/(cot^2theta-cos e c^2theta) ?

What is the value of (tan^(2)theta-sec^(2)theta)/(cot^(2)theta-cos ec^(2)theta)?

Given tantheta=1/(sqrt(5)) , what is the value of (cos e c^2theta-sec^2theta)/(cos e c^2theta+sec^2theta) ?

If 2cos^(2)theta-1=0andtheta is acute then what is the value of (cot^(2)theta-tan^(2)theta) ?

If theta=9^@ , then what is the value of cot theta cot2 theta cot3 theta cot4 theta cot5 theta cot6 theta cot7 theta cot8 theta cot9 theta ? यदि theta=9^@ ,तो cot theta cot2 theta cot3 theta cot4 theta cot5 theta cot6 theta cot7 theta cot8 theta cot9 theta का मान क्या होगा?

Find the minimum value of 9tan^2theta+4cot^2theta