Prove the following: 6. cos(π/4-x)cos(π/4-y)-sin(π/4-x)sin(π/4-y) = sin (x+y)

Sahay Sir > Question Answers > Prove the following: 6. cos(π/4-x)cos(π/4-y)-sin(π/4-x)sin(π/4-y) = sin (x+y)
Prove the following: 6. cos(π/4-x)cos(π/4-y)-sin(π/4-x)sin(π/4-y) = sin (x+y)
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Oct
Prove the following: 6. cos(π/4-x)cos(π/4-y)-sin(π/4-x)sin(π/4-y) = sin (x+y) Prove the following: 6. cos(π/4-x)cos(π/4-y)-sin(π/4-x)sin(π/4-y) = sin (x+y) October 22, 2021 Category: Chapter 3 - Trigonometric Functions , Maths , NCERT Exemplar Class 11 ,
Posted in: Chapter 3 - Trigonometric Functions , Maths , NCERT Exemplar Class 11 ,
Tags: Prove the following: 6. cos(π/4-x)cos(π/4-y)-sin(π/4-x)sin(π/4-y) = sin (x+y) ,