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in tringle ABC if cosA=sinB-sinC, then prove that it is right angle tringle

in tringle ABC if cosA=sinB-sinC, then prove that it is right angle tringle

Grade:12th pass

1 Answers

Raghu Vamshi Hemadri
72 Points
5 years ago
Use transformations n the RHS for twice you get CosC=0 so one of angle is 900.

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