Solve. a. log 3 x = 9 log x 3 b. log 5 x + log x
Question:
Solve.
a. log3 x = 9 logx 3
b. log5 x + logx 5 = 2
c. log4 x – 4 logx 4 + 4 = 0
d. log4 x + 6 logx 4 – 5 = 0
e. log2 x – 9 logx 2 = 8
f. log5 y = 4 – 4 logy 5
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a log3 x 9 logx 3 Let y log3 x Then x 3y and logx 3 y Hence 9y y or y 0 Therefore log3 x 0 so x 1 b ...View the full answer
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Related Book For
Cambridge IGCSE And O Level Additional Mathematics Coursebook
ISBN: 9781108411660
2nd Edition
Authors: Sue Pemberton
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