ellersickg ellersickg
  • 07-03-2019
  • Mathematics
contestada

HELP, Prove: (cos(x))/(sin(x)tan(x))=cot^2x

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TaeKwonDoIsDead
TaeKwonDoIsDead TaeKwonDoIsDead
  • 07-03-2019

Answer:

Steps shown below

Step-by-step explanation:

We will simplify this using definitions and identities. Let's start.

[tex]\frac{cos(x)}{sin(x)tan(x)}[/tex]

Using [tex]tanx=\frac{sinx}{cosx}[/tex], we have:

[tex]\frac{cos(x)}{sin(x)\frac{sin(x)}{cos(x)}}\\=\frac{cos^2(x)}{sin^2(x)}[/tex]

Using [tex]cot(x)=\frac{cos(x)}{sin(x)}[/tex], we have:

[tex]\frac{cos^2(x)}{sin^2(x)}\\=cot^2(x)[/tex]

Hence, proved.

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norkatron69 norkatron69
  • 07-03-2019

bout to but can.you help me

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