Given that $$\(2 \ln (x+1)+\ln x=\ln (x+9)\)$$, show that $$\(x=\sqrt{\frac{9}{x+2}}\)$$. ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................

Mathematics
IGCSE&ALevel
CAIE
Exam No:9709_m21_qp_22 Year:2021 Question No:5(a)

Answer:

Use the power law correctly
Use correct process to obtain equation with no logarithms
Confirm \(x=\sqrt{\frac{9}{x+2}}\)

Knowledge points:

2.2.1 understand the relationship between logarithms and indices, and use the laws of logarithms (excluding change of base)

Solution:

Download APP for more features
1. Tons of answers.
2. Smarter Al tools enhance your learning journey.
IOS
Download
Android
Download
Google Play
Download