Question

Q.2. Find the value :
log (x + 1) + log (x - 1) = log 3

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Answer 1

Explanation:

log(x+1)+log(x-1)=log3

log[(x+1)*(x-1)]=log3

log(x^2-x+x-1)=log3

log(x^2-1)=log3

10^[log(x^2-1)]=10^log3

x^2-1=3

x^2=4

x=sqrt4

x=+2,-2

hope it helps you dear ❤️