Question

Find out the truth sets of the following open sentences replacement sets are given against them.
$x^2=9;\{-3,-2,-1,0,1,2,3\}$

• A. $\{-3,-2,-1\}$
• B. $\{-3,3\}$
• C. $\{1,2,3\}$
• D. $\{-1,0,1\}$

Answer 1

Answer: (B)

$\{-3,3\}$

$x^2=9,$

$x=\pm 3$

$x\in \{-3,3\}.$