The minimum value of `(cos theta-sin theta)` is

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

The minimum value of cos theta+sintheta+ 2/(sin2theta) for theta in (0, pi/2) is (A) 2+sqrt(2) (B) 2 (C) 1+sqrt(2) (D) 2sqrt(2)

Find the maximum and minimum value of cos^(2) theta- 6 sin theta cos theta + 3 sin^(2) theta + 2 .

Express 2cos theta + 3 sin theta in the form r cos ( theta - alpha ), where r is positive, stating the values of r and alpha. What is the maximum value of 2 cos theta + 3 sin theta ?

The ratio of the maximum value to minimum value of 2cos^(2)theta+cos theta+1 is :

Find the maximum and minimum value of 5cos theta+3sin(theta+(pi)/(6)) for all real values of theta . .

What is the minimum value of (sin^2theta+cos^4theta) ?

Find the maximum and minimum values of cos^2theta-6sinthetacostheta+3sin^2theta+2.

Find the maximum and minimum values of cos^2theta-6s inthetacostheta+3sin^2theta+2.

The value of 3(cos theta-sin theta)^(4)+6(sin theta+cos theta)^(2)+4 sin^(6) theta is where theta in ((pi)/(4),(pi)/(2)) (a) 13-4cos^(4) theta (b) 13-4cos^(6) theta (c) 13-4cos^(6) theta+ 2 sin^(4) theta cos^(2) theta (d) 13-4cos^(4) theta+ 2 sin^(4) theta cos^(2) theta