Swebaceacichegh

2022-02-02

What is the complex conjugate of $2\sqrt{10}$?

portafilses

Expert

Simply alter the sign of the imaginary part to find a complex conjugate (the part with the i). It either goes from positive to negative or from negative to positive, according to this.
As a general rule, the complex conjugate of .
You make an odd argument. There is no imaginary component in your number. Therefore, $2\sqrt{10}$, if expressed as a complex number, would be written as $2\sqrt{10}+0i$.
Thus, the complex conjugate of , which is still equal to $2\sqrt{10}$.

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