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√(21) what is the answer to this. can someone please help me?
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1 vote

√(21)
what is the answer to this. can someone please help me?

User LarryLo
by
5.9k points

1 Answer

5 votes

sqrt (21) = sqrt(3)*sqrt(7)

is an irrational number

it cannot be simplified

it can be approximated

sqrt (21) is approximately 4.582575695.......

User Akihiro
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