Question

sin^2 30° - cos^2 90° + sec^2 30°​

Answer 1

☆Answer☆

• sin 30° = 1/2

• cos 90° = 0

• sec 30° = 2/_/3

sin²30°-cos²90°+sec²30°

(1/2)²-(0)²+(2/_/3)²

1/4 + 4/3

lcm of 3 and 4 is 12.

(3+12)/12

15/12.