Convert to Polar (0,-(7pi)/6)

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Trigonometry

$(0, - \frac{7 π}{6})$

Convert from rectangular coordinates $(x, y)$ to polar coordinates $(r, θ)$ using the conversion formulas.

$r = \sqrt{x^{2} + y^{2}}$

$θ = t a n^{- 1} (\frac{y}{x})$

Replace $x$ and $y$ with the actual values.

$r = \sqrt{{(0)}^{2} + {(- \frac{7 π}{6})}^{2}}$

$θ = t a n^{- 1} (\frac{y}{x})$

Find the magnitude of the polar coordinate.

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Raising $0$ to any positive power yields $0$ .

$r = \sqrt{0 + {(- \frac{7 π}{6})}^{2}}$

$θ = t a n^{- 1} (\frac{y}{x})$

Use the power rule ${(a b)}^{n} = a^{n} b^{n}$ to distribute the exponent.

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Apply the product rule to $- \frac{7 π}{6}$ .

$r = \sqrt{0 + {(- 1)}^{2} {(\frac{7 π}{6})}^{2}}$

$θ = t a n^{- 1} (\frac{y}{x})$

Apply the product rule to $\frac{7 π}{6}$ .

$r = \sqrt{0 + {(- 1)}^{2} (\frac{{(7 π)}^{2}}{6^{2}})}$

$θ = t a n^{- 1} (\frac{y}{x})$

Apply the product rule to $7 π$ .

$r = \sqrt{0 + {(- 1)}^{2} (\frac{7^{2} π^{2}}{6^{2}})}$

$θ = t a n^{- 1} (\frac{y}{x})$

$r = \sqrt{0 + {(- 1)}^{2} (\frac{7^{2} π^{2}}{6^{2}})}$

$θ = t a n^{- 1} (\frac{y}{x})$

Raise $- 1$ to the power of $2$ .

$r = \sqrt{0 + 1 (\frac{7^{2} π^{2}}{6^{2}})}$

$θ = t a n^{- 1} (\frac{y}{x})$

Multiply $\frac{7^{2} π^{2}}{6^{2}}$ by $1$ .

$r = \sqrt{0 + \frac{7^{2} π^{2}}{6^{2}}}$

$θ = t a n^{- 1} (\frac{y}{x})$

Raise $7$ to the power of $2$ .

$r = \sqrt{0 + \frac{49 π^{2}}{6^{2}}}$

$θ = t a n^{- 1} (\frac{y}{x})$

Raise $6$ to the power of $2$ .

$r = \sqrt{0 + \frac{49 π^{2}}{36}}$

$θ = t a n^{- 1} (\frac{y}{x})$

Add $0$ and $\frac{49 π^{2}}{36}$ .

$r = \sqrt{\frac{49 π^{2}}{36}}$

$θ = t a n^{- 1} (\frac{y}{x})$

Rewrite $\sqrt{\frac{49 π^{2}}{36}}$ as $\frac{\sqrt{49 π^{2}}}{\sqrt{36}}$ .

$r = \frac{\sqrt{49 π^{2}}}{\sqrt{36}}$

$θ = t a n^{- 1} (\frac{y}{x})$

Simplify the numerator.

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Rewrite $49 π^{2}$ as ${(7 π)}^{2}$ .

$r = \frac{\sqrt{{(7 π)}^{2}}}{\sqrt{36}}$

$θ = t a n^{- 1} (\frac{y}{x})$

Pull terms out from under the radical, assuming positive real numbers.

$r = \frac{7 π}{\sqrt{36}}$

$θ = t a n^{- 1} (\frac{y}{x})$

$r = \frac{7 π}{\sqrt{36}}$

$θ = t a n^{- 1} (\frac{y}{x})$

Simplify the denominator.

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Rewrite $36$ as $6^{2}$ .

$r = \frac{7 π}{\sqrt{6^{2}}}$

$θ = t a n^{- 1} (\frac{y}{x})$

Pull terms out from under the radical, assuming positive real numbers.

$r = \frac{7 π}{6}$

$θ = t a n^{- 1} (\frac{y}{x})$

$r = \frac{7 π}{6}$

$θ = t a n^{- 1} (\frac{y}{x})$

$r = \frac{7 π}{6}$

$θ = t a n^{- 1} (\frac{y}{x})$

Replace $x$ and $y$ with the actual values.

$r = \frac{7 π}{6}$

$θ = t a n^{- 1} (\frac{- \frac{7 π}{6}}{0})$

The inverse tangent of Undefined is $θ = 270 °$ .

$r = \frac{7 π}{6}$

$θ = 270 °$

This is the result of the conversion to polar coordinates in $(r, θ)$ form.

$(\frac{7 π}{6}, 270 °)$

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