Question

Which answer choice below provides a reason for why
x
0
=
1
?
Select one answer
A
Because
1
is an irrational number.

B
Because a number divided by itself is equal to
1
.

C
Because any term multiplied by
0
is equal to
1
.

D
Because
1
is an irrational number.

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Answer 1

B. Because a number divided by itself is equal to 1. For example, x^0 = x^{1-1} = x^1/x^1 = 1 (for x ≠ 0).