Mathematics · Properties of Triangles
एक त्रिभुज ABC में, यदि AD कोण A का आंतरिक समद्विभाजक (internal bisector) है जिसकी लंबाई d है, तो निम्नलिखित में से कौन सा सही है?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1d = (bc / (b + c)) * cos(A/2)
- 2d = (2bc / (b + c)) * cos(A/2)✓
- 3d = ((b + c) / bc) * cos(A/2)
- 4d = ((b + c) / 2bc) * cos(A/2)
सही उत्तर देखें
d = (2bc / (b + c)) * cos(A/2)
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