Last updated at Dec. 16, 2024 by Teachoo
For general solutions
We must learn
For sin x = sin y,
x = nπ + (–1) n y, where n ∈ Z
For cos x = cos y ,
x = 2nπ ± y, where n ∈ Z
For tan x = tan y,
x = nπ + y, where n ∈ Z
Note : Here n ∈ Z means n is an integer
For general solutions We must learn For sin x = sin y, x = nπ + (–1)n y, where n ∈ Z For cos x = cos y, x = 2nπ ± y, where n ∈ Z For tan x = tan y, x = nπ + y, where n ∈ Z Note: Here n ∈ Z means n is an integer
About the Author
Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo