Understanding Numbers and Sequences

This video from Mumu Math provides definitions and explanations of key mathematical concepts including reciprocal, conjugate, rational and irrational numbers, real numbers, integers, and the Fibonacci sequence. Each concept is briefly introduced to help viewers understand their meanings and applications in mathematics.

What is the reciprocal of a number?

• The number squared

• The number divided by 2

• The number itself

• 1 divided by the number

Which of the following is a conjugate pair?

• 3 and 3

• 5 and -5

• 2 + 3i and 2 - 3i

• 7 and 1/7

Which of these numbers is irrational?

• 3/4

• √2

• 9.5

• 4

What is a real number?

• A number that is an integer

• A number that is a fraction

• A number that is always positive

• A number that is not imaginary

Which sequence is known for starting with 0 and 1, where each number is the sum of the two preceding ones?

• Arithmetic sequence

• Geometric sequence

• Fibonacci sequence

• Harmonic sequence