Operations with imaginary numbers - Game#1

Front

What is an imaginary number?

Back

An imaginary number is a number that can be written as a real number multiplied by the imaginary unit 'i', where i is defined as the square root of -1.

Front

What is the product of (2i) and (3i)?

Back

-6

Front

How do you combine like terms in the expression 2i - 7i + 10?

Back

10 - 5i

Front

What is the result of subtracting (10 + 15i) - (48 - 30i)?

Back

-38 + 45i

Front

Calculate the product of (1 - 2i) and (6 + 5i).

Back

16 - 7i

Front

What is the result of multiplying (4 + 3i) and (4 - 3i)?

Back

25

Front

What is the formula for multiplying two complex numbers (a + bi)(c + di)?

Back

(ac - bd) + (ad + bc)i

Front

What is the value of i^2?

Back

-1

Front

How do you simplify the expression 3i + 4 - 2i?

Back

4 + i

Front

What is the conjugate of the complex number 5 + 2i?

Back

5 - 2i