[" Q.If "4cos^(2)theta=3" then "theta=----],[10]

Assertion (A): sqrt(4sin^(4)theta+sin^(2)2theta)+4cos^(2)(pi/4-theta/2)=2" then "theta in Q_(3) or Q_(4) Reason (R ): In Q_(3) & Q_(4), |sintheta|=-sintheta

cos 4theta = cos 3theta - cos2theta

A value of theta satisfying 4cos^(2)theta sin theta-2sin^(2)theta=3sin theta is

If cos2 theta*cos3 theta*cos theta=(1)/(4) for 0

If 3cos theta+4cos theta=5 then 4sin theta-3cos theta is equal to

A value of theta in (0, pi//3), for which |{:(1+"cos"^(2)theta, "sin"^(2)theta, 4"cos" 6 theta), ("cos"^(2)theta, 1+"sin"^(2)theta, 4"cos"6theta), ("cos"^(2)theta, "sin"^(2)theta, 1+4"cos"6theta):}| = 0, is

cos theta cos2 theta cos3 theta=(1)/(4)

If |{:(1+cos^(2)theta,sin^(2)theta,4cos6theta),(cos^(2)theta,1+sin^(2)theta,4cos6theta),(cos^(2)theta,sin^(2)theta,1+4cos6theta):}|=0 , and theta in (0,(pi)/(3)) , then value of theta is

If |{:(1+cos^(2)theta,sin^(2)theta,4cos6theta),(cos^(2)theta,1+sin^(2)theta,4cos6theta),(cos^(2)theta,sin^(2)theta,1+4cos6theta):}|=0 , and theta in (0,(pi)/(3)) , then value of theta is