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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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