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Evaluate $$\lfloor\sqrt{1}\rfloor + \lfloor\sqrt{2}\rfloor + \lfloor\sqrt{3}\rfloor + \dots + \lfloor\sqrt{29}\rfloor$$

 Feb 21, 2021
 #1
avatar+939 
0

from 1 to 3: 1

from 4 to 8: 2

from 9 to 15: 3

from 16 to 24: 4

from 25 to 29: 5

 

3(1) + 5(2) + 7(3) + 9(4) + 5(5) = 95

 Feb 21, 2021

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