Question

cot^2 30° - 2 cos^2 60° - 3/4 sec^2 45° - 4 sec^2
30°​

Answer 1

Answer:

=(√3)²-2(1/2)²-3/4(√2)²-4(2√3/3)²

=3-2/4-6/2-48/9

=3-1/2-3/2-48/9

=54-9-27-96/18

=-78/18

=-78/18

=-26/6

=-13/3