Symbols

• What does "power" represent in mathematics?

  Raising a number x to the power of y
• What is the principal square root of a number?

  The non-negative square root of a number
• What is the square root of 9?

  3
• What does "cube root" mean?

  The number which, when cubed, gives x
• What is the cube root of 27?

  3
• What is π in mathematics?

  An irrational number approximately equal to 3.14159
• What does P(A) represent in probability theory?


  The probability of event A occurring
• What does P(A') (Complement) represent?


  The probability that event A does not occur
• What does P(A∪B) signify in probability?

  The probability that at least one of A or B occurs
• What does P(A∩B) represent?

  The probability that both events A and B occur
• What is the symbol for the empty set?

  ∅
• What does the symbol "*" represent?

  It denotes multiplication
• What does the symbol "-" represent?

  It denotes subtraction
• What does the symbol "=" represent?

  It denotes equality
• What is $\xi$ (universal set)


  That all elements are under consideration