संख्या रेखा पर (x<-7) और (x>12) को साथ दिखाने के लिए कौन सा अंतराल सही है?
Which interval is correct for showing (x<-7) and (x>12) together on the number line?
Explanation opens after your attempt
B. (\(-\infty,-7\)\cup\(12,\infty\))
Concept
Two separate parts are joined by \(\cup\). Both endpoints are excluded so parentheses are used.
Why this answer is correct
The correct answer is B. (\(-\infty,-7\)\cup\(12,\infty\)). Two separate parts are joined by \(\cup\). Both endpoints are excluded so parentheses are used.
Exam Tip
दो अलग हिस्सों को \(\cup\) से जोड़ा जाता है। दोनों सीमाएँ शामिल नहीं हैं इसलिए गोल कोष्ठक लगेंगे।
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