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allsm [11]
2 years ago
5

Integrate the following:

Ccos%28x%29%20%5C%3A%20%20dx" id="TexFormula1" title=" \displaystyle \int \: \tan(x) \cos(x) \: dx" alt=" \displaystyle \int \: \tan(x) \cos(x) \: dx" align="absmiddle" class="latex-formula">

​
Mathematics
2 answers:
Korvikt [17]2 years ago
6 0

Answer:

\huge \boxed{\red{ \boxed{  -  \cos(x)  + C}}}

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about:</h3>
  • integration
  • PEMDAS
<h3>tips and formulas:</h3>
  • \tan( \theta)  =  \dfrac{ \sin( \theta) }{ \cos( \theta) }
  • \sf \displaystyle \int  \sin(x)   \: dx =    - \cos(x)  +   C
<h3>let's solve:</h3>
  1. \sf \: rewrite \:  \tan( \theta)  \:  as \:   \dfrac{ \sin( \theta) }{ \cos( \theta) }  :  \\   =  \displaystyle  \int \:  \frac{ \sin(x) }{ \cos(x) }  \cos(x)  \: dx \\   = \displaystyle \int \:  \frac{ \sin(x) }{ \cancel{\cos(x) }}   \: \cancel{ \cos(x)}  \: dx \\     = \displaystyle \int \:  \sin(x)   \: dx
  2. \sf \: use \: the \: formula : \\   \sf \displaystyle     - \cos(x)
  3. \sf add \: constant :  \\   -  \cos(x)  + C

\text{And we are done!}

Mnenie [13.5K]2 years ago
4 0

Answer:

-cosx+c is your answer

Step-by-step explanation:

\displaystyle \int \: \tan(x) \cos(x) \: dx

\displaystyle \int \: \sin \: x \div  \cos(x)  \times  \cos(x) dx

\displaystyle \int \: sinx \: dx \\  -  \cos(x)  + c

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