Chris828211 Chris828211
  • 01-03-2018
  • Mathematics
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tynollette tynollette
  • 01-03-2018
√4=2, and √45=√(9*5)=√9 *√5=3√5
so you have 2/(3√5)
Multiply both top and bottom by √5 to eliminate the √ in the denominator:
(2√5)/15 is the final answer. 
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mani57 mani57
  • 01-03-2018
I don’t get it because you can’t divide 45\2 or 4
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