का मान क्या है?

  1. e2
  2. इनमें से कोई नहीं 

Answer (Detailed Solution Below)

Option 4 : इनमें से कोई नहीं 
Free
UP TGT Hindi FT 1
125 Qs. 500 Marks 120 Mins

Detailed Solution

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संकल्पना:

चरघातांकी श्रृंखला:

  • ex = .

गणना:

हम जानते हैं कि ex = 

साथ ही, e-x = 

∴ ex + e-x

x = 1 रखने पर, हमें निम्न प्राप्त होता है:

⇒ 

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