Find the value of the expression a^ 2 -b^ 2 for a=2, b=1 - Vidyadip

MCQ

Find the value of the expression $\mathrm{a}^{2}-\mathrm{b}^{2}$ for $\mathrm{a}=2, \mathrm{b}=1$

A
$1$
B
$2$
✓
$3$
D
$4$

✓

Answer

Correct option: C.

$3$

$(2)^{2}-(1)^{2}=3$

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