Math, asked by reddykrishnakrpbe9dm, 5 months ago

if a =6 b=5,c=9 then a=? fully explaination?

Answers

Answered by shivdharmendragautam

0

Answer:

2bc

Step-by-step explanation:

Using cosine formula

cos (a) = (b2 +c2-a2 ) ÷ 2bc

substitute and get the answer

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