Question

negative / zero exponents (level 1)
this is the only question in this section.
question
which expression is equivalent to $4^{-1} \cdot 4$?
answer
$4^2$
0
1
$\frac{1}{4^2}$

Explanation:

Step1: Recall exponent addition rule

For same base $a^m \cdot a^n = a^{m+n}$

Step2: Apply rule to the expression

$4^{-1} \cdot 4 = 4^{-1+1} = 4^{0}$

Step3: Evaluate zero exponent

Any non-zero number to 0 power is 1: $4^{0}=1$

Answer:

1