Either 2i or -2i, when squared equal -4.
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.
it is a rational number but 4.121314..... is an irrational no
It is an irrational number.
An irrational number.
No, but it is imaginary: 2i.
A raiz quadrada de um número negativo não é definida no conjunto dos números reais, mas pode ser avaliada no conjunto dos números complexos. Para − 4 −4 , usamos a propriedade dos números complexos: − 4 = 4 ⋅ − 1 −4 = 4 ⋅ −1 Sabemos que: 4 = 2 4 =2 − 1 = 𝑖 −1 =i, onde 𝑖 i é a unidade imaginária. Portanto: − 4 = 2 𝑖 −4 =2i No conjunto dos números complexos, o resultado é 2 𝑖 2i.
It is 3 minus 2i
An irrational number.
Either 2i or -2i, when squared equal -4.
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
No. The sum of an irrational number and any other [real] number is irrational.
The sum of a rational and irrational number must be an irrational number.
No, 3.56 is not an irrational number. 3.56 is rational.
rational * irrational = 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.
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.