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Sqrt(4) is +/- 2 so it is rational, not irrational. The question, therefore, makes no sense.
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Are all radical expressions irrational?
No. Radical(9) is +3 or -3, both of which are rational.
Is any number expressed with a radical symbol an irrational number?
No. Radical(1.21) = 1.1, for example, is rational.
What is a negative irrational number?
A negative irrational number can be thought of as an irrational number multiplied by -1, or an irrational number with a minus sign in front of it.
What is the square root sign called?
it's called the radical sign
How was the radical sign discovered?
It was invented, not discovered.
Is every number that contains a radical classified as an irrational number justify your response?
No. Sqrt(-4) contains a radical but it not irrational; it is imaginary.
Is v61 an irrational number?
If the symbol preceding the 61 is intended to be a radical sign, the answer is yes. If it is not a radical, it depends on the value of v.
Are all irrational numbers radical?
No they are not. The numbers Pi and e are irrational and are not radicals. There are many others.
Are radical expressions irrational?
If the value applied in the radical is not a perfect square, it is irrational. 25; 400; and 625 are perfect squares and are rational when applied in a radical.
Is radical 9 irrational?
The square root of 9 is irrational
Is radical 42 irrational?
Yes, it is.
Is radical 49 irrational?
No, it is rational.
What is the radical of 5?
The square root (radical) of 5 is about 2.2361 (an irrational number)
Is radical 3.45 an irrational number?
Yes.
Is radical 121 rational or irrational?
rational
What do you call a root of a number that is irrational in character?
The root of an irrational doesn't have any specific name - radical pi is just radical pi, for example.
Are all radical expressions irrational?
No. Radical(9) is +3 or -3, both of which are rational.
