>> question1(1, 1.5)
ans = 
    0.0021

>> question1(2, 1.5)
ans = 
    0.0095

>> question1(3, 1.5)
ans = 
    0.0017

>> question1(4, 1.5)
ans = 
    0.0091

>> question1(5, 1.5)
ans =
   0.0011

>> question1(6, 1.5)
ans =
    0.0097