C = 9 because all the x terms go away.
The cost of a shirt was originally $ 40 but the price dropped to $32 because it was on sale. What was the percent change in the
2 answers:
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C = 9 because all the x terms go away.
Answer:
The error is at step (3) .
The correct step (3) will be,
= [by using the laws of indices]
All other steps are correct.
Step-by-step explanation:
The error is at the step (3) , because the student has tried to prove the quotient rule of logarithms by using the property i.e., 'The quotient rule of logarithm' itself , i.e. ,by assuming the property does hold before proving it. So, the proof is fallacious.
The correct step (3) will be,
= [by using the laws of indices]
All other steps are correct.