[" Cund "13" If "A=16:2cos^(2)theta+sin theta<=24" and "],[qquad B={theta:(pi)/(2)<=theta<=(3 pi)/(2)" ,thrm "A nn B" is caual to "]

2 cos theta - cos 3 theta - cos 5 theta - 16 cos^(3) theta sin^(2) theta =

If sin theta = 12/13 (0^(@) lt theta lt 90^(@)) , find the value of (sin^(2) theta - cos^(2)theta)/(2 sin theta cos theta) xx (1)/(tan^(2)theta) .

If sin theta=(12)/(13), find the value of (sin^(2)theta-cos^(2)theta)/(2sin theta cos theta)xx(1)/(tan^(2)theta)

If cos theta=(5)/(13), find the value of (sin^(2)theta-cos^(2)theta)/(2sin theta cos theta)xx(1)/(tan^(2)theta)

Minimum value of (9 cos ^(2) theta + 16 sin ^(2) theta) is-

Evaluate the following determinants: (b) |(cos theta, -sin theta),(sin theta, cos theta)| = cos theta (cos theta) - sin theta(-sin theta) = cos^(2) theta + sin^(2) theta = 1

If 2 - cos^(2) theta = 3 sin theta cos theta , sin theta ne cos theta then tan theta is

If cos^(4)theta-sin^(4)theta=(2)/(13) , find cos^(2)theta-sin^(2)theta+1 .

If A=cos^(2)theta+sin^(4)theta then for all values of theta(A)1<=A<=2(B)(13)/(16)<=A<=1(C)(3)/(4)<=A<=(13)/(16) (D) (3)/(4)<=A<=1