
Is a rational number, an irrational number or zero?
Answer
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Hint: We are given difference of two number as: . Firstly, identify whether the numbers are rational or irrational. Then identify if the difference is rational or rational.
Complete step-by-step solution:
As we know that: is an irrational number. It also represents the ratio of the circumference to the diameter of a circle.
Also, is a rational number because it is represented in the form of
Now, we need to find the difference of both numbers is rational or irrational.
Since we know that the sum or difference of a rational and irrational number is always irrational. Therefore, the difference of is also an irrational number.
Note: A rational number is a number that can be expressed as a fraction where both the numerator and the denominator in the fraction are integers. The denominator in a rational number cannot be zero. A rational number is expressed in the form of , where . Their decimal expansion is finite or repeating decimals. Do not consider as and then write the result as 0, it will not be correct in this question. Irrational numbers are real numbers that can’t be written as a simple fraction. Their decimal expansion is non-finite or non-repeating decimals.
Complete step-by-step solution:
As we know that:
Also,
Now, we need to find the difference of both numbers
Since we know that the sum or difference of a rational and irrational number is always irrational. Therefore, the difference of
Note: A rational number is a number that can be expressed as a fraction where both the numerator and the denominator in the fraction are integers. The denominator in a rational number cannot be zero. A rational number is expressed in the form of
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