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प्र:

(719 + 2) को 6 से भाग देने पर शेषफल होगा :

  • 1
    2
  • 2
    1
  • 3
    5
  • 4
    3
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उत्तर : 4. "3 "
व्याख्या :

By the Binomial expansion we have

Here, each term except the last term contains x. Obviously, each term except the last term is exactly divisible by x.

Following the same logic,

719 = (6 + 1)19 has each term except last term divisible by 6.

Hence, 719 + 2 when divided by 6 leaves remainder =1 + 2 = 3

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