The square root of 4 is 2 which is a rational number
No because it is 2 times the square root of 21 which is an irrational numberThe square root of 84 is not a rational number
Yes, because the answer is 3/2 which is a rational number.
And exponent of -2 represents the square root
2 and 1/2 are rational numbers, but 2^(1/2) is the square root of 2. It is well known that the square root of 2 is not rational.
square root of 9 = 3 but 2, 17 and 23 are irrational numbers
The square root of 4 is 2. 2 is a rational number so they square root of 4 is rational.
It is rational. The root of a perfect square, such as 4, is rational; the root of any positive integer that is not a perfect square is an irrational number.
Yes, it is the principal square root of 4, and it is rational.
Yes, it is the principal square root of 4, and it is rational.
The square root of 4 is 2 which is a rational number
Yes because the square root of 4 is 2 which is a rational number
The square root of 2 is an irrational number
Square root of a rational number may either be rational or irrational. For example 1/4 is a rational number whose square root is 1/2. Similarly, 4 is 4/1 which is rational and the square root is 2 which of course is also rational. However, 1/2 and 2 are rational, but their square roots are irrational. We can say the square root of a rational number is always a real number. We can also say the rational numbers whose square roots are also rational are perfect squares or fractions involving perfect squares.
No, not all square roots are rational numbers. A rational number is a number that can be expressed as a fraction where the numerator and denominator are integers and the denominator is not zero. Square roots that are perfect squares, such as √4 or √9, are rational numbers because they can be expressed as whole numbers. However, square roots of non-perfect squares, such as √2 or √3, are irrational numbers because they cannot be expressed as a simple fraction.
If the positive square root (for example, square root of 2) is irrational, then the corresponding negative square root (for example, minus square root of 2) is also irrational.
No because it is 2 times the square root of 21 which is an irrational numberThe square root of 84 is not a rational number