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Question 6.4
Question 6.4
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TZ
leumasic
Official
3 months ago
Consider
f
(
x
)
=
{
1
,
if
x
is rational
,
−
1
,
otherwise
.
f(x)= \begin{cases} 1, & \text{if } x \text{ is rational},\\ -1, & \text{otherwise}. \end{cases}
f
(
x
)
=
{
1
,
−
1
,
if
x
is rational
,
otherwise
.
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