The notation according to the set will be "[tex][5, + \infty) \cup (- \infty , 7][/tex]".
Let,
- "x" belongs to a set of (Real numbers) R.
∴ [tex]x \ \epsilon \ R[/tex]
Now,
- [tex]x \geq 5[/tex]
- [tex]x \leq 7[/tex]
hence,
→ [tex]x \leq 7 \rightarrow (- \infty, 7][/tex]
→ [tex]x \geq 5 \rightarrow [5, + \infty)[/tex]
then,
The notation will be:
→ [tex][5, + \infty) \cup (- \infty , 7][/tex]
Thus the above solution is appropriate.
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