Mathematics for IGCSE & O level - Indices 2 (Section 4)

• 1

  If (2^x = rac{1}{4}), what is the value of *x*?

  回答

  (A)

  -2
• 2

  What value of *x* satisfies ( x^{-1} = rac{1}{5} )?

  回答

  (A)

  5
• 3

  What is the result when simplifying ( a^7 / a^7 )?

  回答

  (B)

  1
• 4

  Which of the following is/are equivalent to ( 2^{x+y} )? (Select all that apply)

  回答

  A

  B
• 5

  If ( x^3 = 27 ), what is the value of *x*?

  回答

  (A)

  3
• 6

  Select the equivalent expressions to (rac{1}{a^3}). (Select all that apply)

  回答

  (A)

  (a^{-3})
• 7

  Solve: ( 5^x = 1 ).

  回答

  (A)

  0
• 8

  What is the value of (2^4)?

  回答

  (C)

  16
• 9

  Which expression is equivalent to ( sqrt[3]{64} )?

  回答

  (A)

  4
• 10

  If ( (rac{2}{5})^x = rac{25}{4} ), what is the value of x?

  回答

  (A)

  -2