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in a traingle ABC if a,b,c Are in ap then prove that CosA/2,CosB/2,CosC/2 are in ap

in a traingle ABC if a,b,c Are in ap then prove that CosA/2,CosB/2,CosC/2 are in ap

Grade:12

1 Answers

Deepak Kumar Shringi
askIITians Faculty 4404 Points
5 years ago
check the image
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