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If sin^2(theta-alpha)cosalpha=cos^2(thet...

If `sin^2(theta-alpha)cosalpha=cos^2(theta-alpha)sinalpha=msinalphacosalpha`, then

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sin(3theta+alpha)+sin(3theta-alpha)+sin(alpha-theta)-sin(alpha+theta)=cosalpha

sin(3theta+alpha)+sin(3theta-alpha)+sin(alpha-theta)-sin(alpha+theta)=cosalpha

sin(3theta+alpha)+sin(3theta-alpha)+sin(alpha-theta)-sin(alpha+theta)=cosalpha

If A_(alpha)=[(cosalpha,sinalpha),(-sinalpha,cosalpha)] then (A_(alpha))^2=?

sin(3 theta+alpha)+sin(3 theta-alpha)+sin(alpha-theta)-sin(alpha+theta)=cos alpha

Let f(theta, alpha)= 2sin^2theta+4cos(theta+alpha)sintheta.sinalpha+cos2(theta+alpha) The value of f(pi/3,pi/4) is