Impossible Math Questions Quiz

What is the square root of -1?

• -1

• 0

• 1

• i

Solve the equation: (3 + 4i) / (2 - i)

• 2 + 3i

• 5 - 2i

• 1 + 2i

• 4 - 3i

Find the modulus and argument of the complex number 5 + 12i

• Modulus = 10, Argument = arctan(12/5)

• Modulus = 13, Argument = arctan(5/12)

• Modulus = 13, Argument = arctan(12/5)

• Modulus = 7, Argument = arctan(5/12)

Find the derivative of f(x) = 3x^2 + 4x - 2

• 3x^2 + 4x - 2

• 2x^3 + 4x^2 - 2x

• 9x + 2

• 6x + 4

Evaluate the integral of 2x^3 + 5x^2 - 3x + 7

• (2/4)x^4 + (5/3)x^3 - (3/2)x^2 + 7x

• (2/4)x^4 + (5/3)x^3 - (3/2)x^2 + 7x - C

• (2/4)x^4 + (5/3)x^3 - (3/2)x^2 + 7x + C

• (1/4)x^4 + (5/3)x^3 - (3/2)x^2 + 7x + C

Find the limit of (x^2 - 4) / (x - 2) as x approaches 2

• The limit is 4.

• The limit is 0

• The limit is 6

• The limit is 2

If two dice are rolled, what is the probability of getting a sum of 7?

• 6/36 or 1/6

• 1/12

• 5/36

• 2/6

A bag contains 5 red, 3 blue, and 2 green balls. If a ball is drawn at random, what is the probability of getting a red ball?

• 5/10

• 2/10

• 7/10

• 3/10

In a group of 20 people, what is the probability that at least two people have the same birthday?

• 0.25

• 0.75

• 0.50

• 0.4115

What is the remainder when 17^23 is divided by 5?

• 2

• 0

• 3

• 1