Wednesday, 5 March 2014

LOGARITHMS C1

If log16(4x - 48)=1; find x

   Solution

log16(4x - 48)=1

 (4x - 48)=161

 4x - 48=16

4x = 16 + 48

4x =64

4x = 64   
4        4

X = 16

Hence x = 16


TRY THIS………………

If log19(2m - 19)=1; find m.

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