Question

2 tan2

60° – 4 cos2

45° – 3 sec2

30° ​

Answer 1

Answer:

Step-by-step explanation:

2tan^2 60° - 4 cos^2 45° -3sec^2 30° ----(1)

tan 60° = √3

cos 45° = 1/√2

sec 30° = 2/√3

putting value in equation (1)

2(√3)^2 - 4(1/√2)^2 - 3(2/√3)^2

=2(3) - 4(1/2) - 3(4/3)

=6-2-4

=6-6

=0 ANS