Question

7) The value of
is equal to
1+tan230°
a) sin 60
b) cos 30 0
c) cosec 60
d) tan 60​

Answer 1

Answer:

(A) is correct.

2tan 30°/1+tan230° = 2(1/√3)/1+(1/√3)2 = (2/√3)/(1+1/3) = (2/√3)/(4/3) = 6/4√3 = √3/2 = sin 60°