Question

V
Sec² 60° - tan²60
sin 230 - cos 30​

Answer 1

Answer:

V

Sec² 60° - tan²60

sin 230 - cos 30

Answer 2

Step-by-step explanation:

1) sec² 60° - tan² 60°

2² - √3²

4-3

1

2) sin² 30° - cos 30°

(1/2)² - (√3/2)²

1/4 - 3/4

-2/4

-1/2