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ধরুন f(x) = x2, R এ, তাহলে f এর পরিসর কত হবে?

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NTPC CBT-I (Held On: 7 Jan 2021 Shift 2)
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  1. ধনাত্মক সংখ্যা
  2. ঋণাত্মক বাস্তব সংখ্যা
  3. ধনাত্মক বাস্তব সংখ্যা
  4. পূর্ণসংখ্যা

Answer (Detailed Solution Below)

Option 1 : ধনাত্মক সংখ্যা
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Detailed Solution

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প্রদত্ত:

f(x) = x2

গণনা:

f(x) = x2

⇒ f এর পরিসর = [0, ∞] = R+

⇒ ধনাত্মক সংখ্যা

∴ f এর পরিসর হবে ধনাত্মক সংখ্যা

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