Question

Dados log2=030 Log3=47 e log5=0，69.calcule.
A)log20
B)log45
C)log0，3
D)log125

Answer 1

a) Log2^2.5 = 2Log2 . Log5 = 2.0,30 . 0,69 = 0,414

b) Log 3^3.5 = 3Log3 . Log5 = 3. 0,47 . 0,69 = 0,9729

c) Log 3/2.5 = Log3 - Log2 . Log5
= 0,47 - ( 0,30 . 0,69 )= 0,263

d) Log 5^3 = 3Log5 = 3. 0,69 = 2,07