Question

2tan square 45°+cos square30°- sin square 60°​

Answer 1

=2tan^2 45°+cos^2 30°-sin^2 60°

=2tan^2 45°+sin^2(90-30)-sin^2 60°

=(2×1)+(sin^2 60°-sin^2 60°)

=2×1+0

=2[ans]

☺HOPE IT IS HELPFUL. ☺