LOGARITHMS 6

Evaluate Log30 – Log15 + Log50.

Solution

= Log30 – Log15 + Log50.

= Log(30 x 50)

               15

= Log(1500)

             15

= Log₁₀100

= Log₁₀10²

            

= 2Log₁₀10

= 2 x 1

= 2

∴ Log30 – Log15 + Log50 = 2

TRY THIS……………………….

Evaluate Log750 – Log15 + Log20.