A. [[cos^2 theta, sin^2 theta], [- sin^2 theta, cos^2 theta]]
B. [(cos2theta,sin2theta),(-sin2theta,cos2theta)]
C. [[cos^2 theta, - sin^2 theta], [sin^2 theta, cos^2 theta]]
D. [(cos2theta,-sin2theta),(sin2theta,cos2theta)]
সঠিক উত্তরঃ
B.
[(cos2theta,sin2theta),(-sin2theta,cos2theta)]