TS EAMCET · Maths · Trigonometric Equations
If \(A+B+C=\pi\), then \(\sin A-\sin B+\sin C=\)
- A \(4 \cos \left(\frac{A}{2}\right) \cos \left(\frac{B}{2}\right) \cos \left(\frac{C}{2}\right)\)
- B \(4 \sin \left(\frac{A}{2}\right) \sin \left(\frac{B}{2}\right) \cos \left(\frac{C}{2}\right)\)
- C \(\sin \left(\frac{A}{2}\right) \cos \left(\frac{B}{2}\right) \sin \left(\frac{C}{2}\right)\)
- D \(4 \sin \left(\frac{A}{2}\right) \cos \left(\frac{B}{2}\right) \sin \left(\frac{C}{2}\right)\)
Answer & Solution
Correct Answer
(D) \(4 \sin \left(\frac{A}{2}\right) \cos \left(\frac{B}{2}\right) \sin \left(\frac{C}{2}\right)\)
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