Prove that: `-4le5costheta+3cos(theta+(pi)/(3))+3le10`, for all values of `theta`,

The maximum values of 3 costheta+5sin(theta-(pi)/(6)) for any real value of theta is:

If A = sin^2 theta+ cos^4 theta , then for all real values of theta

Prove that sintheta+sin(theta+(2pi)/(3))+sin(theta+(4pi)/(3))=0

The maximum value of 1+sin(pi/4+theta)+2cos(pi/4-theta) for real values of theta is

Prove that (cot theta -cos theta )/( cot theta +cos theta ) =(cos ec theta -1)/( cosec theta +1)

If costheta = 5/3 then what is the value of cos(theta/2) ?

if sin2theta=pi/2 and costheta=pi/3 then what is the value of sintheta

Prove that sqrt ((1+cos theta )/( 1-cos theta ) ) = cosec theta +cot theta , 0le theta le 90 ^(@)

If costheta = 3/5 then what is the value of sin2theta ?

If one of the roots of 25cos^(2)theta+5costheta-12=0 is alpha then the value of sin2theta is ……….. ((pi)/(2)ltthetaltpi) .