Logarithms and Laws of Logs

Simplifying using the laws of logarithms

• log(10)

• log(21)

• log(343)

• log(4)

Evaluate

• 2

• 0.5

• 9

• 3

Evaluate

• 6

• 12

• 18

• 0

Simplifying using laws of logarithms

• log(31)

• log(108)

• 5log(6)

• 5log(5)

Log with a base "e" (log_e) is the same thing as...

• "e"

• Natural Logarithm (LN)

• Common Logarithm (Log)

• Natural Log, base "e"
  LN_e

• x = 2

• x = -2

• y = 2

• y = -2

Evaluate

• -1

• 5

• 1

• -5

Simplifying using the laws of logarithms

• log(10)

• log(3)

• log(20)

• log(75)

Evaluate

• 2

• 4

• -2

• 1

Simplifying using the laws of logs

• log(12)

• log(8)

• log(3)

• log(4)