Question

is the sum or difference of a rational number and an irrational number is irrational?

Answer 1

sum of rational number=rational
difference of rational number=rational
sum of irrational number=irrational
difference of irrational number=irrational

Answer 2

the sum of rational and irrational number is irrational.
for example:-2 is rational and 2.34754442..... is irrational. the sum of these two numbers is 4.34754442..... so this is irrational.

the difference of one rational and one irrational number is irrational.
for example:-1-2.1234567890...=1.1234567890
this number is irrational.


hope it helps...



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