If 2 1+ + = then 1+ - 1+ is equal to
Mathematics · JEE Main · NTA Exams — Trigonometry
If \(\frac{2 \sin \alpha}{1+\sin \alpha+\cos \alpha}=\lambda \text { then } \frac{1+\sin \alpha-\cos \alpha}{1+\sin \alpha}\) is equal to
- \(\frac{1}{\lambda}\)
- λ
- 1 – λ
- 1 + λ
Answer
(B) λ
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