The numbers which are not real are:

irrational

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imaginary

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decimals

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rationals

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Solution

The correct option is B imaginary
Math divides numbers into two big categories: real numbers and complex numbers. These complex numbers are what we are called imaginary numbers, because (in addition to an optional real part) they have an imaginary part containing the factor $\sqrt{- 1}$ which is denoted by $i$ .
For instance, $3 + 2 i$ .

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Similar questions

a, b, c

G . P . a + b + c = x b

x

λ

\frac{sin λ α}{sin α} - \frac{cos λ α}{cos α} = λ - 1,

α

\frac{π}{2}

λ

\frac{s i n (λ α)}{s i n α} - \frac{c o s (λ α)}{c o s α} = λ - 1

α

\frac{π}{2}

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