lil8174
30.03.2021 •
Mathematics
Can someone help me this is the last question
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Ответ:
4+ 2 and 2+ 2
Step-by-step explanation:
A rational number is a number that can be written as a ratio. That means it can be written as a fraction, in which both the numerator and the denominator are whole numbers.
On the other hand, all numbers that are not rational are considered irrational. An irrational number can be written as a decimal, but not as a fraction.
So, let us take two irrational numbers a=4+ 2 and b=2+ 2 and we now calculate a−b as follows: a−b=(4+ 2 )−(2+ 2)=4+ 2 −2− 2 =2= 1 2
Therefore, the difference of two irrational numbers a and b is 2 and from the above defination of rational numbers, we get that 2 is a rational number.
Hence, the difference of two irrational numbers 4+ 2 and 2+ 2 is a rational number.