2011
Mathematics
JAMB
If log318 + log33 - log3x = 3, Find x.
A.
1
B.
2
C.
0
D.
3
Correct Answer: 2
Explanation
log318 + log33 - log3x = 3 log318 + log33 - log3x = 3log33 log318 + log33 - log3x = log333 log3(18×3/X ) = log333 18×3/X = 33 18 x 3 = 27 x X x = 18×3/27 = 2
log318 + log33 - log3x = 3 log318 + log33 - log3x = 3log33 log318 + log33 - log3x = log333 log3(18×3/X ) = log333 18×3/X = 33 18 x 3 = 27 x X x = 18×3/27 = 2THIS WEEK's
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