Find four rational number between -2 and 2
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If a and b are two rational no.s, then (a + b/2) will be the rational no. between a and b.
So,
rational no. between 2 and -2 will be
{2 + (-2)}/2 = 0
Rational no. between 0 and 2
(0 + 2)/2 = 1
Rational no. between 1 and 2
(1 + 2)/2 = 3/2
Rational no. between 3/2 and 2
(3/2 + 2)/2 = (3 + 4)/2 = 7/2
So, four rational no.s between
2 and -2 will be
0, 1, 3/2, 7/2
In this way, we can find infinite no. of rational no.s between two rational no.s
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