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Maslowich
3 years ago
5

hello! So the people in Indian server were bad(as they would not answer and instead spam) so I switched servers and I hope you a

ll will help me! pleaase​

Mathematics
1 answer:
Art [367]3 years ago
7 0

Answer:

\displaystyle E=26log2-24log3+8log 5

Step-by-step explanation:

<u>Logarithms</u>

There are certain properties of the logarithms we'll need to recall in order to simplify the expression given in the question. We'll list them below

log(x.y)=logx+logy\\log(x/y)=logx-logy\\logx^y=y.logx

We'll also need to factor the following numbers into their prime factors:

20=2^2\cdot 5

16=2^4

15=3\cdot 5

25=5^2

24=2^3\cdot 3

81=3^4

80=2^4\cdot 5

The original expression is

\displaystyle E=log20+16log\frac{16}{15}+12log\frac{25}{24}+log\frac{81}{80}

Plugging in the factored values

\displaystyle E=log(2^2\cdot 5)+16log\frac{2^4}{3\cdot 5}+12log\frac{5^2}{2^3\cdot 3}+log\frac{3^4}{2^4\cdot 5}

Applying the properties we have

\displaystyle E=log2^2+log 5+16(log2^4-log3-log 5)+12(log5^2-log2^3-log 3)+log3^4-log2^4-log 5

\displaystyle E=2log2+log 5+16log2^4-16log3-16log 5+12log5^2-12log2^3-12log 3+log3^4-log2^4-log 5

\displaystyle E=2log2+log 5+64log2-16log3-16log 5+24log5-36log2-12log 3+4log3-4log2-log 5

Simplifying

\boxed{\displaystyle E=26log2-24log3+8log 5}

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