[68in^(4)O+56c^(4)O=2],[" find ralue "*[7cosec^(6)theta+8sec^(6)theta]^((4)/(3))]

Find the minimum value of sec^(2)theta+csc^(2)theta-4

Prove that: sec^(2)theta+csc^(2)theta>=4

Show that sec ^(2) theta+cosec^(2) theta geq 4

Solve : sec theta-cosec theta =4/3 .

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

Minimum value of 9 sec^(2) theta + 4 cosec^(2) theta + 7 is

cot^(3)theta + 6 "cosec"2theta - 8 "cosec"^(3)2theta=0

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

Find the minimum value of sec^2 theta + cosec^2 theta - 4.

Find the minimum value of sec^2 theta + cosec^2 theta - 4.