फलन f(x) = 1 + |sin x| है:

  1. कहीं भी संतत और अवकलनीय नहीं है। 
  2. प्रत्येक जगह संतत और अवकलनीय है। 
  3. केवल x = 0 पर अवकलनीय नहीं है। 
  4. अनंत बिंदुओं पर अवकलनीय नहीं है।

Answer (Detailed Solution Below)

Option 4 : अनंत बिंदुओं पर अवकलनीय नहीं है।
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Detailed Solution

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Sin x

|sinx|

f(x) = 1 + |sin x| का आलेख जैसा कि चित्र में दिखाया गया है:

ग्राफ से, यह स्पष्ट है कि फलन प्रत्येक जगह पर संतत है लेकिन π के समाकल गुणजों पर अवकलनीय नहीं है (∴ इन बिंदुओं पर वक्र में तीक्ष्ण मोड़ हैं)।

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