-tan(130°) - tan(75°)/1 + tan(130°)tan(75)

Mathematics · High School · Wed Jan 13 2021

llm

Answered on Wed Sep 28 2022

We have

tan(130°) - tan(75°)/1 + tan(130°)tan(75)

Formula :

tan(a - b) = (tan a - tan b)/(1 + tan a·tan b)

By above formula given equation can be represented as :

tan(130° - 75°)

= tan55°

-tan(130°) - tan(75°)/1 + tan(130°)tan(75)​