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Find the units place digit in …

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Find the units place digit in the expansion of 2 power 2007
  • 1 answers

Adhishri Shrivastava 3 years, 2 months ago

The unit's place digit of 22007 ⇒21=2; 22=4 ; 23=8 ; 24=16  And thus the cycle of the unit's place is repeated after every 4th power of 2 =The unit's place digit of 24(501)+3 =The unit's place digit of 23 =8
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