Saturday 4 February 2017

LOGARITHMS 1H


Find x if Logx 15625 = 6

Solution

Logx 15625 = 6

15625 = x6 . [changing into exponential form]

56 = x6 .

56 = x6 .    [ cancelling the powers]

x = 5

Hence x = 5

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

NECTA F-IV, 1999 QN. 3b (ii)


Find x if Logx32 = 5

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