Tuesday 12 April 2016

LOGARITHMS-3


Find x if Logx0.00001 = -5

solution

Logx0.00001 = -5

0.00001  = x-5 .  [0.000001  = 10-5  ]

10-5 = x-5 .

105 = x5 .  { equal powers cancel out}

x = 10

Hence x = 10

TRY THIS..................

Find x if Logx256 = 8


No comments:

Post a Comment