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Pepsi [2]
3 years ago
9

Rewrite the expression as a single logarithm and simplify the result. ln lcosxl +lnltanxl

Mathematics
1 answer:
NNADVOKAT [17]3 years ago
6 0
Recall your logarithms rules

\bf ln|cos(x)|+ln|tan(x)|\\\\
-----------------------------\\\\
log_{{  a}}(xy)\implies log_{{  a}}(x)+log_{{  a}}(y)\qquad thus\\\\
-----------------------------\\\\
ln|cos(x)tan(x)|\implies ln\left| cos(x)\cdot \cfrac{sin(x)}{cos(x)} \right|\implies 
ln|sin(x)|
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Step-by-step explanation:

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2 years ago
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monitta

Answer:

The sum of money received by Ali, Carrie and Bryan is $ 740.

Step-by-step explanation:

At first we translate mathematically each sentence:

(i) <em>Ali, Carrie and Bryan received a sum of money. </em>

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b - Bryan's money.

c - Carrie's money.

(ii) <em>Bryan's money was </em>\frac{3}{5}<em> of  Ali's money</em>.

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(iii) <em>The ratio of Ali's money to Carrie's money was 4 : 1</em>.

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After some algebraic handling, we have the following system of linear equations:

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The solution of the system is: a = 400, b = 240, c = 100

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s = a + b + c

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