Radicals and Complex Numbers

Front

What is a radical?

Back

A radical is an expression that includes a root, such as a square root (√) or cube root (∛). It represents the operation of finding a number that, when multiplied by itself a certain number of times, gives the original number.

Front

What is a complex number?

Back

A complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is the imaginary unit, defined as the square root of -1.

Front

How do you add complex numbers?

Back

To add complex numbers, combine the real parts and the imaginary parts separately. For example, (a + bi) + (c + di) = (a + c) + (b + d)i.

Front

What is the imaginary unit 'i'?

Back

Front

What is the principal square root of a number?

Back

Front

Back

Front

Back

Front

Back

Front

What is the sum of (5 - 2i) and (-7 + 8i)?

Back

The sum is -2 + 6i.

Front

Back