PLEASE HELP! URGENT. the law of cosines is a2+b2-2abcosC=c2. Find the value of 2abccosC.

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Trisped asked Apr 3, 2022

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PLEASE HELP! URGENT. the law of cosines is a2+b2-2abcosC=c2. Find the value of 2abccosC.

Mathematics
high-school

Trisped asked Apr 3, 2022

by Trisped

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23 votes

Answer:

The answer is 37

Explanation:

Gmcnaughton answered Apr 4, 2022

by Gmcnaughton

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22 votes

Answer:

Explanation:

2ab*cos(C)=a^2+b^2-c^2

2ab*cos(C)=5^2+4^2-2^2=25+12=37

KhalilRavanna answered Apr 8, 2022

by KhalilRavanna

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