Prove the following: 18. sin x – sin y / cos x + cos y = tan x-y/2

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Prove the following: 18. sin x – sin y / cos x + cos y = tan x-y/2
24
Oct
Prove the following: 18. sin x – sin y / cos x + cos y = tan x-y/2 Prove the following: 18. sin x - sin y / cos x + cos y = tan x-y/2 October 24, 2021 Category: Chapter 3 - Trigonometric Functions , Maths , NCERT Exemplar Class 11 ,
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