Properties of Logarithms

Simplifying using the laws of logarithms

• log(10)

• log(21)

• log(343)

• log(4)

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(48)

• log(4)

• log(80)

• log(8)

Evaluate

• 6

• 12

• 18

• 0

Simplifying using laws of logarithms

• log(15)

• log(72)

• log(56)

• log(39)

Evaluate

• -1

• 5

• 1

• -5

log (a * b) = ?

• log a * log b

• log a + log b

• log a - log b

• a*log b

log (a² * b) = ?

• 2log(a) + log(b)

• 2log(a) + 2log(b)

• log(a) + log(b)

• 2log(a) * log(b)

Write log_b(x/y) as two logs

• log_bx-log_by
• log_bx+log_by
• log_bx*log_by
• log_bx/log_by