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In any triangle ABC, prove that(b²-c²/cosB+cosC)+ (c²-a²/cosC+cosA)+(a²-b²/cosA+cosB)=0

In any triangle ABC, prove that(b²-c²/cosB+cosC)+ (c²-a²/cosC+cosA)+(a²-b²/cosA+cosB)=0

Grade:10

1 Answers

Saurabh Koranglekar
askIITians Faculty 10341 Points
2 years ago
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