Rలో f(x) = x2 అయితే, అప్పుడు f యొక్క పరిధి:

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NTPC CBT-I (Held On: 7 Jan 2021 Shift 2)
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  1. రుణాత్మక సంఖ్యలు కానివి
  2. రుణాత్మక వాస్తవ సంఖ్యలు
  3. ధనాత్మక వాస్తవ సంఖ్యలు
  4. పూర్ణాంకాలు

Answer (Detailed Solution Below)

Option 1 : రుణాత్మక సంఖ్యలు కానివి
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RRB NTPC CBT-I Official Paper (Held On: 4 Jan 2021 Shift 1)
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100 Questions 100 Marks 90 Mins

Detailed Solution

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ఇవ్వబడింది:

f(x) = x 2

లెక్కింపు:

f(x) = x 2

y = x 2 ⇒ x = \(\pm\sqrt y\)

y < 0 x యొక్క వాస్తవ విలువ లేదు

⇒ y ≥ 0 ⇒ 0 ⇒ 0 ⇒ 0 ⇒ 0 ⇒ 0 ⇒ 0 ≥�� 0 ⇒ 0 ≥ 0 ⇒ 0 ≥ 0 ≥ 0 ⇒ 0 ≥ 0 ≥ 0 ≥ 0 ≥ 0 �

⇒ f = [0, పరిధి

∴ f యొక్క పరిధి రుణాత్మకం కాని సంఖ్యలుగా ఉంటుంది ( సున్నా కూడా పరిధిలోనే ఉంటుంది కాబట్టి)

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