Saturday 18 January 2014

LOGARITHMS B10

If Logax = 1/2  Loga16+ 1/3 Loga 343 find x.

Solution

Logax = 1/2  Loga16+ 1/3 Loga343

Logax = Loga161/2  +  Loga3431/3   

Logax = Loga 4 +  Loga7

Logax = Loga (4 x 7)

Logax = Loga 28


x = 28

Hence x = 28

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