Find the value of `9sec^(2)A-9tan^(2)A`

Find the value of: sec^2(tan^-1(2))

9 sec^(2) A - 9 tan^(2) A =

Find the value of sec(tan^(-1)((y)/(2)))

Find the value of 4tan^(2)A-4sec^(2)A .

If tanx=-(4)/(3), (3pi)/(2) lt x lt 2pi , find the value of 9sec^(2)x-4 cot x .

If tanx=-(4)/(3), (3pi)/(2) lt x lt 2pi , find the value of 9sec^(2)x-4 cot x .

If tanx=-(4)/(3), (3pi)/(2) lt x lt 2pi , find the value of 9sec^(2)x-4 cot x .

If tanx=-(4)/(3), (3pi)/(2) lt x lt 2pi , find the value of 9sec^(2)x-4 cot x .

If tan theta=-(4)/(3),(3 pi)/(2)

If p sec theta+q tan theta=1 and p^(2)sec^(2)theta-q^(2)tan^(2)theta=5 then find the value of (9p^(-2)-4q^(-2))