" 9.If "theta=(11 pi)/(6)," then "cos theta+sin theta=

If theta = (11pi)/(6) . Then cos theta + sin theta =

If 2cos theta+sin theta=1(theta!=(pi)/(2)) then 7cos theta+6sin theta is equal to

When theta=11/3pi , then the value of cos theta-sin theta is

If f (theta) = [[cos^(2) theta , cos theta sin theta,-sin theta],[cos theta sin theta , sin^(2) theta , cos theta ],[sin theta ,-cos theta , 0]] ,then f ( pi / 7) is

If f (theta) = [[cos^(2) theta , cos theta sin theta,-sin theta],[cos theta sin theta , sin^(2) theta , cos theta ],[sin theta ,-cos theta , 0]] "then " f (pi/7) is

If f (theta) = [[cos^(2) theta , cos theta sin theta,-sin theta],[cos theta sin theta , sin^(2) theta , cos theta ],[sin theta ,-cos theta , 0]] ,then f ( pi / 7) is

If f (theta) = [[cos^(2) theta , cos theta sin theta,-sin theta],[cos theta sin theta , sin^(2) theta , cos theta ],[sin theta ,-cos theta , 0]] ,then f ( pi / 7) is

The value of theta ( 0 lt theta lt (pi)/(2)) for which cos theta sin (theta - (pi)/(6)) is maximum is-

Let theta = (pi)/(5) and A =[{:(cos theta, sin theta),(-sin theta, cos theta):}] . If B = A + A^(4) , then det (B).