Math, asked by shivabnagally9551, 1 year ago

Prove determinant is an isoseles triangle

Answers

Answered by abhinavnayan18

0

heyyy....

Δ = |(1 1 1), (1+cosA 1+cosB 1+cosC), (cos2A +cosA cos2B

+cosB cos2C+cosC)| = 0

thnku!!

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