मान लीजिए है, तो A- 4A + 7I  का मान ज्ञात कीजिए। 

  1. 7
  2. 3
  3. 9
  4. 0

Answer (Detailed Solution Below)

Option 4 : 0
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Agniveer Navy SSR Full Test - 01
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Detailed Solution

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गणना:

दिया गया है: A =  

ज्ञात करना है: A- 4A + 7I 

A- 4A + 7I =  x  - 4 + 7

 -  + 

 + 

 - 

= 

= 0

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