Question
Write the inequations that represent the interval and state whether the interval is bounded or unbounded: $(0,0.9]$

Answer

$(0,0.9]$
Here, $x$ takes values between 0 and 0.9 , including 0.9 and excluding 0 .
$\therefore$ the required inequation is $0<\mathrm{x} \leq 0.9$
$\therefore$ it is a bounded (semi-right closed) interval.

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