Evaluate `"cosec"^(2)57^(@)-tan^(2)33^(@)`.

Find the value of : cosec^(2)60^(@)-tan^(2)30^(@)

Find the value of : cosec^(2)60^(@)-tan^(2)30^(@)

Choose the correct answer in each of the following questions: "cosec"^(2)57^(@)-tan^(2)33^(@)=?

Evaluate: "cosec"^(2)30^(@)+sec^(2)60^(@)+tan^(2)30^(@) .

Find the value of ("cosec"^(2)A-1)*tan^(2)A .

Find the value of ("cosec"^(2)A-1)*tan^(2)A .

Evaluate : (sin 35^(@) cos 55^(@) + cos 35^(@) sin 55^(@))/ (cosec^(2) 10^(@) - tan^(2) 80^(@))

Evaluate: (sec^(2)(90^(@) - theta)-cot^(2) theta)/(2 (sin^(2) 25^(@)+sin^(2) 65^(@)))+(2 sin^(2)30^(@)tan^(2) 32^(@) tan^(2)58^(@))/(3(sec^(2)33^(@)-cot^(2)57^(@))) .

Prove that sec^(2)33^(@)-cot^(2)57^(@)=1 .

Evaluate: int("cosec x")/(log tan(x/2)) dx