2022-01-17

Is $3+\sqrt{5}$ a complex number?

nick1337

Expert2022-01-17Added 777 answers

Step 1

Any number which can be expressed in the form of a+ib where a and b are real numbers and

is called a complex number.

is a complex number with real part

and imaginary part 0.

star233

Skilled2022-01-17Added 403 answers

Step 1

Complex number is a number of form a+ib where ‘a’ and ‘b’ are real numbers and

can also be written as

Hence it is also a complex number which is purely real.

alenahelenash

Expert2022-01-24Added 556 answers

Yes, all real numbers are also complex numbers, with an imaginary part of zero.
$3+\sqrt{5}$
is also an irrational number, since $\sqrt{5}$ is irrational.

$\frac{20b}{{\left(4{b}^{3}\right)}^{3}}$

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