Math, asked by chetana67, 4 months ago

In triangle ABC show that cos^2 A-cos^2 B+cos^2 C=1-2sinA.cosB.sinC

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Answered by Luckydancer950

0

Answer:

cos2A+cos2B-cos2C=1-2sinAsinBsinC. 835.4 K LIKES ... 2.3 K SHARES. In a ` triangleABC`, prove that `cos^2(2A)+.

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