The minimum value of `cos^2 theta+ sec^2 theta` is

Find the minimum value of cos^2theta +sec^2theta .

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

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

The minimum value of 2 sin^2 theta + 3cos^2 theta is

Find the minimum value of Cos^2theta+sec^2theta

Find the minimum value of sec^2 theta + cos^2 theta + 2

The minimum value of 8(cos2 theta+cos theta) is equal to

If range of sin^(2)theta+cos^(4)theta is [k_(1),k_(2)], then the minimum value of cos2 theta+4cos theta+4 is

The minimum value of 8(cos2theta+cos theta) is equal to