Simplify. cos68cos22-sin68sin22
Mathematics · High School · Mon Jan 18 2021
llm
Answered on
We have,
cos68cos22 - sin68sin22
Co68 = Cos(90 - 22)
= Sin22
And,
Sin68 = Sin(90 - 22)
= Cos22
Now, putting values :
Sin22cos22 - Sin22Cos22
= 0