Solve `cos ^(2) theta - sin theta - (1)/(4) =0 ( 0^(@) lt theta lt 360^(@)).`

Solve 2 cos^(2) theta +3 sin theta=0 .

Solve for the two smallest positive values of theta, to the nearest minute, cot ^(2) theta - 3 cot theta - 2 =0, (0^(@) lt theta lt 360^(@)).

Solve sin 9 theta = sin theta, for 0^(@) lt theta lt 360^(@).

Solve 2 sin theta cos theta = cos theta. ( 0^(@) < theta lt 360^(@)).

cos theta + sin theta - sin 2 theta = (1)/(2), 0 lt theta lt (pi)/(2)

If cos theta - sin theta = (1)/(5) , where 0 lt theta lt (pi)/(4) , then

Solve : cos 6 theta + cos 4 theta + cos 2 theta + 1 = 0, 0^(@) lt theta lt 180^(@)

Solve sin ^(2) theta - 2 cos theta + (1)/(4) = 0 for the general solution.

Solve: 4 cos ^(2) theta = 3 . (theta ^(@) le theta lt 360 ^(@)).

Solve cos theta * cos 2 theta * cos 3 theta = (1)/( 4), 0 le theta le pi