How would you simplify the square root of 4/7 in fraction form?
回答 (3)
2016-06-16 3:52 pm
√(4/7)
= √(2²/7) × √(7/7)
= (2√7) / 7
= √(2²/7) × √(7/7)
= (2√7) / 7
2016-06-16 4:07 pm
I would simplify it to 2/√7 .
2016-06-16 3:55 pm
square root of 4/7
= sqrt[ 4/7]
= sqrt(4)/sqrt(7) ........................sqrt(a/b) = sqrt(a)/sqrt(b)
= 2/sqrt(7)....................sqrt(4) = 2
= 2sqrt(7)/7................multiplying top and bottom by sqrt(7)
= sqrt[ 4/7]
= sqrt(4)/sqrt(7) ........................sqrt(a/b) = sqrt(a)/sqrt(b)
= 2/sqrt(7)....................sqrt(4) = 2
= 2sqrt(7)/7................multiplying top and bottom by sqrt(7)
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原文連結 [永久失效]:
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