Question

Evaluate 2 sin square 30 degree tan 60 degree - 3 cos square 60 degree sec square 30 degree

Answer 1

(√3)/2 -1 ≈ -0.133974596

Explanation:

2sin²(30°)tan(60°) -3cos²(60°)sec²(30°)

= 2(1/2)²(√3) -3(1/2)²(2/√3)²

= 2(1/4)√3 -3(1/4)(4/3)

= (√3)/2 -1 ≈ -0.133974596