ALE MATH P3 C2 LOG

Which of the following is correct?

• log (a+b) = log a + log b

• log (ab) = log a + log b

• log ⁡(a−b) = log ⁡a − log ⁡b

• log (a+b) = log a log b

Simplify log⁡ 9 − log⁡ 3

• log 6

• log 3

• log 27

• 2

Which expression is equal to log (2x)?

• log 2 + log x

• log 2x

• 2 log x

• log (2+x)

Which is equal to log⁡ x² ？

• x log 2

• log x

• 2 log x

• log (2x)

Which value of x is not allowed in log x?

• 5

• 1

• 0

• 10

Which is correct?

• log 100 = 2

• log 100 = 100

• log 100 = 0.2

• log 10 = 2

Simplify log₆ 36

• 2

• 6

• 3

• 12

log 1 =

• 1

• 0

• 11

• 10

log 10 =

• 0

• 1

• 11

• 10

log ₂ (0.5) =

• 2

• 1

• -1

• 0.5