असमानता (|2x+5|>9) संख्या रेखा पर किस interval से दर्शाई जाएगी?
Which interval represents (|2x+5|>9) on the number line?
Explanation opens after your attempt
D. (\(-\infty,-7\)\cup\(2,\infty\))
Concept
(|2x+5|>9) gives (2x+5<-9) or (2x+5>9), so (x<-7) or (x>2). In exams, modulus with (>) gives open outer parts.
Why this answer is correct
The correct answer is D. (\(-\infty,-7\)\cup\(2,\infty\)). (|2x+5|>9) gives (2x+5<-9) or (2x+5>9), so (x<-7) or (x>2). In exams, modulus with (>) gives open outer parts.
Exam Tip
(|2x+5|>9) से (2x+5<-9) या (2x+5>9), इसलिए (x<-7) या (x>2)। परीक्षा में (>) वाले modulus में बाहर के खुले भाग बनते हैं।
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