Question

2 tan 30°
1 - tan2 30°
II
(iv
(A) cos 60°
(B) sin 60°
(C) tan 60°
(D) sin 30°ko nfkkkf​

Answer 1

Step-by-step explanation:

i) 2 tan 30°/1 + tan2 30°

By substituting the values of given trigonometric ratios in the above equation, we get

= 2 × (1/√3)/1 + (1/√3)2

= 2 × (1/√3)/(1 + 1/3)

= (2/√3) / (4/3)

= 6/4√3

= √3/2

Out of the given options only sin 60° = √3/2. Hence, option (A) is correct.