Question

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

Answer 1

Step-by-step explanation:

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

3 - 1/2 - 3/2 - 16/3

3 - 2/2 - 16/3

2 - 16/3

(-11/3)

Answer 2

Answer:

-11/3

Step-by-step explanation:

3-1/2-3/2-16/3

3-2/2-16/3

-11/3