TS EAMCET · Maths · Trigonometric Ratios & Identities
If \(A+B+C=2 S\), then \(\sin (S-A)+\sin (S-B)-\sin C=\)
- A \(-4 \sin \frac{S-A}{2} \sin \frac{S-B}{2} \sin \frac{C}{2}\)
- B \(4 \sin \frac{S-A}{2} \sin \frac{S-B}{2} \sin \frac{C}{2}\)
- C \(-4 \sin \frac{S-A}{2} \sin \frac{S-B}{2} \cos \frac{C}{2}\)
- D \(4 \sin \frac{S-A}{2} \sin \frac{S-B}{2} \cos \frac{C}{2}\)
Answer & Solution
Correct Answer
(B) \(4 \sin \frac{S-A}{2} \sin \frac{S-B}{2} \sin \frac{C}{2}\)
Step-by-step Solution
Detailed explanation
Consider, \(\sin (S-A)+\sin (S-B)-\sin C\)…
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