Solve a log 3 x 9 log x 3 b log 5 x log x 5 2 c log 4 x 4 log x 4 4 0 d log 4 x 6 log x 4 5 0 e log 2 x 9 log x 2 8 f log 5 y 4 4 log y 5 ...

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 ...

Solve. a. log 3 x = 9 log x 3 b. log 5 x + log x

Question:

Solve.

a. log₃ x = 9 log_x 3

b. log₅ x + log_x 5 = 2

c. log₄ x – 4 log_x 4 + 4 = 0

d. log₄ x + 6 log_x 4 – 5 = 0

e. log₂ x – 9 log_x 2 = 8

f. log₅ y = 4 – 4 log_y 5

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Cambridge IGCSE And O Level Additional Mathematics Coursebook

ISBN: 9781108411660

2nd Edition

Authors: Sue Pemberton

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Question Posted: Aug 25, 2021 01:40 AM

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Solve. a. log 3 x = 9 log x 3 b. log 5 x + log x

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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

Cambridge IGCSE And O Level Additional Mathematics Coursebook

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