Find sin x/2 , cos x/2 and tan x/2 in each of the following : 9. cos x = −1/3, x in quadrant III cos x/2 and tan x/2 in each of the following : 9. cos x = −1/3 Find sin x/2 x in quadrant III October 24, 2021 Category: Chapter 3 - Trigonometric Functions , Maths , NCERT Exemplar Class 11 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related