Number of Integers Between √19 and √90

  • Topic:
  • Thread starter Thread starter prasadini
  • Start date Start date
  • Tags Tags
    Integers
Join the discussion
Registration is free. Start your own thread to ask a follow-up.
2 replies · 2K views
prasadini
Messages
9
Reaction score
0
How many integers are there between √19 and √90
 
Mathematics news on Phys.org
$4\lt\sqrt{19}\lt5$ and $9\lt\sqrt{90}\lt10$
 
Subtract the lower number from the higher number.

√90 - √19 = 5.1279

Then use the "floor" function on 5.1279. If you are unfamiliar, floor(x) = the greatest integer <= x. (Basically round down)

So the number of integers between these two values is floor(5.1279)=5.