Evaluate 1*2^-1

$1 \cdot 2^{- 1}$

Multiply $2^{- 1}$ by $1$ .

$2^{- 1}$

Rewrite the expression using the negative exponent rule $b^{- n} = \frac{1}{b^{n}}$ .

$\frac{1}{2}$

The result can be shown in multiple forms.

Exact Form:

$\frac{1}{2}$

Decimal Form:

$0.5$