Question

Prove that cot[pi/4-2cot^-1(3)]=7​

Answer 1

Answer:

cot (π/4 - 2 cot -1 3) = Read more on Sarthaks.com - https://www.sarthaks.com/46320/cot-4-2-cot-1-3-a-7-b-6-c-5-d-none-of-these