Radicals and Complex Numbers

Front

The number under the radical sign or square root sign is called the ______.

Back

radicand

Front

Simplify: (7 + 2i)(9 - 6i)

Back

75 - 24i

Front

Find the sum: (5-2i) + (-7+8i)

Back

-2 + 6i

Front

Back

Front

Back

Front

What is the definition of 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.

Front

What is the imaginary unit 'i'?

Back

Front

What is the conjugate of a complex number a + bi?

Back

The conjugate of a complex number a + bi is a - bi.

Front

How do you multiply two complex numbers?

Back

Front

What is the modulus of a complex number a + bi?

Back