Math, asked by umairkhan72, 1 year ago

in any triangle ABC. IF a=6, b=5 and B=40° find A

Answers

Answered by jbhavyangj2000bj

1

it's A=50°

we have cos formula,

Cos A =
${{b}^{2} + {c }^{2} - {a}^{2}} \div 2bc$

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