यदि संख्या रेखा पर केवल (-5) को छोड़कर बाकी सभी बिंदु छायांकित हैं, तो सही interval कौन-सा है?
If every point except (-5) is shaded on the number line, which interval is correct?
Explanation opens after your attempt
Correct Answer
B. (\(-\infty,-5\)\cup\(-5,\infty\))
Concept
Only (-5) is removed, so both sides are shaded with an open point at (-5). In exams, identify it as \(x\ne-5\).
Why this answer is correct
The correct answer is B. (\(-\infty,-5\)\cup\(-5,\infty\)). Only (-5) is removed, so both sides are shaded with an open point at (-5). In exams, identify it as \(x\ne-5\).
Exam Tip
सिर्फ (-5) हटाया गया है, इसलिए दोनों ओर shading और (-5) पर open point होगा। परीक्षा में इसे \(x\ne-5\) के रूप में पहचानें।
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