2.9 is smaller than √6 because √6 simplified is 3.
[3.4] = 3 as integers less than 3.4 are 3, 2, 1, ... square root of all these numbers will be greater than equal to 1 but less than 2. ... From [√9 ] to [ √15], the value of each term is 3 and total of these 7 terms is 21.
