In a , the tangent of half the difference of two angles is one-third the tangent of…
MATHEMATICS · Single correct · A Level · Mathematics · Trigonometry · Trigonometry
Problem
In a △ABC, the tangent of half the difference of two angles is one-third the tangent of half the sum of the two angles. The ratio of the sides opposite the angles is:
(1) 2:3
(2) 1:3
(3) 2:1
(4) 3:4