Question

sec ^2 30 - tan ^2 60 + 3cos^2 30 -2cos0 + 3sin90 evaluate​

Answer 1

Answer:

The answer is 19/12.

Step-by-step explanation:

The value of sec 30 is 2/root 4

the value of tan 60 is root 3

the value of cos 30 is root 3/2

the value of sin 90 is 1

the value of cos 0 is 1