3 could be written as 3.0
And
4 could be writen as 4.0
Now, you have to find 6 irrational numbers between 3.0 and 4.0
i) 3.46282931678262....
ii)3.75925183013689...
iii)3.0264900173....
iv)3.6282047801101....
v)3.7165890164....
vi)3.92649017464001655...
