Question

*
6. From the above figure, cos A =
FI
A
3
B
BC/AC
o
AB/AC
O AC/AB​

Answer 1

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$\star \: \rm \: in \: this \: \triangle \:$

$\rm \: as$

$\rm \mapsto \cos( \alpha ) = \dfrac{base}{hypotenues} \:$

Here ,

$\rm \mapsto \cos( A) = \dfrac{AB}{AC}$

Answer 2

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$\longrightarrow \rm \: \cos(A) = \dfrac{AB}{AC}$