In ABC, ac cos B – bc cos A = ____________. - Vidyadip

MCQ

In ABC, ac cos B – bc cos A = ____________.

✓
$a^2-b^2$
B
$b^2-c^2$
C
$c^2-a^2$
D
$a^2-b^2-c^2$

✓

Answer

Correct option: A.

$a^2-b^2$

(a) $a^2-b^2$

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