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What is the imaginary number of square root of -4?
Either 2i or -2i, when squared equal -4.
Which number produces an irrational number when multiplied by?
At least one of the factors has to be irrational.* An irrational number times ANY number (except zero) is irrational. * The product of two irrational numbers can be either rational or irrational.
Is 4.121314 is a rational number or irrational?
it is a rational number but 4.121314..... is an irrational no
What is an irrational number minus a rational number?
It is an irrational number.
What number do you get when you add an irrational and a rational number?
An irrational number.
Is the square root of negative 4 irrational?
No, but it is imaginary: 2i.
Evaluate square root of -4?
Sqrt(-4) is an irrational number therefore we must use i. i=sqrt(-1) allows us to pull i out of sqrt(-4): sqrt(4)*i leaves us with 2i The square root of -4 is NOT an irrational number but an imaginary number.
The conjugate of the complex number 3 plus 2i is?
It is 3 minus 2i
What is the sum of an rational number and irrational number?
An irrational number.
What is the imaginary number of square root of -4?
Either 2i or -2i, when squared equal -4.
What is conjugation of 7-2i?
The conjugate of a complex number can be found by multiplying the imaginary part by -1, then adding the "real" part back. (-2i) * -1 = 2i, so the conjugation is 7+2i
Is an irrational number plus an irrational number rational?
No. The sum of an irrational number and any other [real] number is irrational.
The sum of a rational number and an irrational number is?
The sum of a rational and irrational number must be an irrational number.
Is 3.56 an irrational number?
No, 3.56 is not an irrational number. 3.56 is rational.
Whether a rational number multiplied by an irrational number gives an irrational number?
rational * irrational = irrational.
Is negative pi rational or irrational?
-Pi is irrational, because it does not terminate or repeat. Whenever you multiply an irrational number by a rational number (-1), the result is an irrational number.
Is the square root of -4 irrational?
The square root of -4 is not irrational, it is imaginary. Irrational numbers are numbers that cannot be expressed as a fraction, like the square root of 2. Irrational numbers, however, are a subset of real numbers. The square root of -4 however, is not even a real number because no real number, when squared, gives -4. Therefore the square root of -4 is an imaginary number.In calculus, the root is expressed as 2i where iis the square root of -1.
