If 3 cot A = 4, check whether 1-tan^2 A/1+tan^2 A=cos^2 A -sin^2 A or not. check whether 1-tan^2 A/1+tan^2 A=cos^2 A -sin^2 A or not. If 3 cot A = 4 October 5, 2020 Category: Chapter 8 - Introduction to Trigonometry , Maths , NCERT Class 10 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related