Question

Which of the following expressions are equivalent to
−
2
−
1
?
Select ALL that apply.
Select all that apply
A
−
1
2

B
1
2

C
−
0.5

D
0.5

E
−
(
1
2
1
)

F
1
2
1

Answer 1

Interpret −2^−1 as −(2^−1) = −(1/2) = −0.5. So the equivalent choices are:

A, C, and E.

(B, D, F are +1/2 and not equivalent.)