justinderringer03
06.11.2019 •
Mathematics
The law of cosine is c2 = a2 + b2 – 2ab cos c. find the value of 2ab cos c
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Ответ:
c2 + 2ab cos C = a2 + b2
now subtract c2 from both sides:-
2ab cos C = a2 + b2 - c2
Ответ:
Hmm
Step-by-step explanation:
okay...u r get the answers and why r u post it