Math, asked by Lavanya12342, 6 months ago

If A,B,C are angles of triangle,then prove that cos2A+cos2B-cos2C=1-4sinA.sinB.cosC

Answers

Answered by shibdayalshowk09

0

Answer:

qwertyuiopasdfghjklzxcvbnm1234567890

Step-by-step explanation:

,.@#₹_&-+()/!!;:'

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