If sin x + cos y = a and cos x + sin y = b, then tan x-y 2 is equal to
Mathematics · JEE Advanced · NTA Exams — Trigonometry
If sin x + cos y = a and cos x + sin y = b, then tan \(\frac{x-y}{2}\) is equal to
- a + b
- a – b
- \(\frac{a+b}{a-b}\)
- \(\frac{a-b}{a+b}\)
Answer
(D) a-b a+b
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