Question

tan2 60° - 2tan2 45° - cot2 30° + 2sin2 30°

Answer 1

Explanation:

root 3 square - 2 × 1 square - root 3 square + 2(1/2) square

= 3 - 2 - 3 + 2/4

= 2/4 - 2

= take lcm

= 2 - 2×4/4

= 6/4

= 2/3