Question

value of 2tan30 degree/1-tan square 30=

a)cos 60 degree
b) sin 60 degree
c) tan 60 degree
d) sin 30 degree

Answer 1

Answer:

tan 30°/1 - tan square  30°

By substituting the values of given trigonometric ratios for tan 30°, we get

= 2 × (1/√3) / 1 - (1/√3)2

= (2/√3) / (1 - 1/3)

= (2/√3) / (2/3)

= √3= tan 60 degree (C)