Question

The root of 12+ √-21

Answer 1

The expression in terms of complex numbers is
`\(12 + i √(21)\)`

The expression
`\(12 + √(-21)\)` involves the square root of a negative number, which means it has no real roots in the set of real numbers. However, we can express it using complex numbers.

The square root of -21 can be written as
`\(i √(21)\)`, where i is the imaginary unit
`(\(i^2 = -1\))`.

Therefore:

`\[ 12 + √(-21) = 12 + i √(21) \]`

So, the expression in terms of complex numbers is
`\(12 + i √(21)\)`