Question

2 sin2 30° - 3 cos2 45° + tan2 60°

Answer 1

2sin2 30°=2(2(1/2)(√3/2)=√3

3cos2 45°=3{(1/2)-(1/2)}=0

tan2 60°=2(√3)/(1-(√3)²)=-√3

adding all values

=0