If `theta=45^(@)`, then find the value of `"cosec"^(2)theta`.

If cosec^(2)theta+cot^(2)theta=(5)/(7) , then find the value of cosec^(4)theta-cot^(4)theta .

If "cosec"theta=2 ,then find the value of "cosec" 3theta

If "cosec"theta=2 ,then find the value of "cosec" 3theta

If theta =45° , find the value of 2 cosec^(2)theta + 3 sec^(2)theta .

If tan theta =(1)/(sqrt(7)) , find the value of ("cosec"^(2)theta-sec^(2)theta)/("cosec"^(2)theta+sec^(2)theta) .

If "cosec"theta=x+(1)/(4x) , then find the value of "cosec"theta+cot theta .

If "cosec"theta=sqrt(2) ,then find the value of (tan^(2)theta-1) .

If "cosec"theta=sqrt(2) ,then find the value of (tan^(2)theta-1) .

If sin theta+cosec theta=2 , then find the value of sin^(20)theta+cosec^(20)theta .

If sin theta+cosec theta=2 , then find the value of sin^(20)theta+cosec^(20)theta .