6. I need help with question in the attached picture!
ANSWER
[tex]log( \frac{14}{3} ) + log( \frac{11}{5} ) - log( \frac{22}{15} ) =\log 7[/tex]
EXPLANATION
The given logarithmic expression is:
[tex] log( \frac{14}{3} ) + log( \frac{11}{5} ) - log( \frac{22}{15} ) [/tex]
We apply the product rule to the first two terms to get:
[tex]log( \frac{14}{3} \times \frac{11}{5} ) - log( \frac{22}{15} ) [/tex]
We the apply the quotient rule:
[tex]log( \frac{14}{3} \times \frac{11}{5} \div \frac{22}{15} ) [/tex]
[tex]log( \frac{14}{3} \times \frac{11}{5} \times \frac{15}{22} ) [/tex]
We cancel out the common factors and simplify to obtain:
[tex]log( 7 ) [/tex]
Required Knowledge.
log(ab) =log(a) + log(b)
log(a/b) = log(a) -log(b)
SOLUTION
log(14/3) +log(11/5) -log(22/15)
=log((14/3)×(11/5)) -log(22/15)
=log(154/15) -log(22/15
=log( (154/15) ÷ (22/15) )
=log( (154/15) × (15/22) )
=log(154/22)
=log(77/11)
=log(7)
Hence 7 is your answer...
Hope it helps...
Regards;
Leukonov/Olegion.