Question

The set $\{z:z\in R,-10\le y\le 10\}$ can be written in interval as

• A. $[-10,10]$
• B. $(-10,10]$
• C. $[-10,10)$
• D. $(-10,10)$

Answer 1

The correct option is A $[-10,10]$

The set is given as : $\{z:z\in R,-10\le z\le 10\}$.
Here $z\in R$ and both $-10\&10$ are included.
$\Rightarrow z\in [-10,10].$