Mathematics: Apole is needed to support a fence that is 15 ft tall. the pole will be placed 4 ft underground and connect to the top of the fence . the pole will be 30 ft from the fence at ground level

In polar coordinates, we haveFrom this we can writeIf , then , so we get...

Apole is needed to support a fence that is 15 ft tall.

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keaton3410

18.06.2020

Mathematics

sdfs2d

Step-by-step explanation:

13wed s2

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Ответ:

camilacarrielh15

08.06.2021

Mathematics

In polar coordinates, we have

$x=r\cos\theta\implies\cos\theta=\dfrac xr$
$y=r\sin\theta\implies\sin\theta=\dfrac yr$

From this we can write

$\tan\theta=\dfrac{\sin\theta}{\cos\theta}=\dfrac{\frac yr}{\frac xr}=\dfrac yx$

If $\theta=\dfrac{4\pi}3$ , then $\tan\theta=\sqrt$ , so we get

$\dfrac yx=\sqrt3\implies y=\sqrt3\,x$

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Apole is needed to support a fence that is 15 ft tall. the pole will be placed 4 ft underground and connect to the top of the fence . the pole will be 30 ft from the fence at ground level

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