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Sagot :
To convert the polar equation [tex]\( r = 6 \tan \theta \)[/tex] into its rectangular form, we need to use the relationships between polar and rectangular coordinates.
1. Convert [tex]\( \tan \theta \)[/tex] to Cartesian Coordinates:
We know that:
[tex]\[ \tan \theta = \frac{y}{x} \][/tex]
2. Substitute [tex]\( \tan \theta \)[/tex]:
The polar equation is:
[tex]\[ r = 6 \tan \theta \][/tex]
Substituting [tex]\(\tan \theta\)[/tex] with [tex]\(\frac{y}{x}\)[/tex]:
[tex]\[ r = 6 \left( \frac{y}{x} \right) \][/tex]
3. Convert [tex]\( r \)[/tex] to Cartesian Coordinates:
We know that:
[tex]\[ r = \sqrt{x^2 + y^2} \][/tex]
Substituting [tex]\(r\)[/tex]:
[tex]\[ \sqrt{x^2 + y^2} = 6 \left( \frac{y}{x} \right) \][/tex]
4. Eliminate the Square Root:
Square both sides of the equation to eliminate the square root:
[tex]\[ (\sqrt{x^2 + y^2})^2 = \left( 6 \left( \frac{y}{x} \right) \right)^2 \][/tex]
Simplifies to:
[tex]\[ x^2 + y^2 = 36 \frac{y^2}{x^2} \][/tex]
5. Clear the Fraction by Multiplying by [tex]\( x^2 \)[/tex]:
Multiply every term by [tex]\( x^2 \)[/tex] to clear the denominator:
[tex]\[ x^2 (x^2 + y^2) = 36 y^2 \][/tex]
6. Expand and Simplify:
Distribute [tex]\( x^2 \)[/tex]:
[tex]\[ x^4 + x^2 y^2 = 36 y^2 \][/tex]
Rearrange to get all terms on one side:
[tex]\[ x^4 + x^2 y^2 - 36 y^2 = 0 \][/tex]
The rectangular form of the given polar equation, in its general form, is:
[tex]\[ x^4 + x^2 y^2 - 36 y^2 = 0 \][/tex]
1. Convert [tex]\( \tan \theta \)[/tex] to Cartesian Coordinates:
We know that:
[tex]\[ \tan \theta = \frac{y}{x} \][/tex]
2. Substitute [tex]\( \tan \theta \)[/tex]:
The polar equation is:
[tex]\[ r = 6 \tan \theta \][/tex]
Substituting [tex]\(\tan \theta\)[/tex] with [tex]\(\frac{y}{x}\)[/tex]:
[tex]\[ r = 6 \left( \frac{y}{x} \right) \][/tex]
3. Convert [tex]\( r \)[/tex] to Cartesian Coordinates:
We know that:
[tex]\[ r = \sqrt{x^2 + y^2} \][/tex]
Substituting [tex]\(r\)[/tex]:
[tex]\[ \sqrt{x^2 + y^2} = 6 \left( \frac{y}{x} \right) \][/tex]
4. Eliminate the Square Root:
Square both sides of the equation to eliminate the square root:
[tex]\[ (\sqrt{x^2 + y^2})^2 = \left( 6 \left( \frac{y}{x} \right) \right)^2 \][/tex]
Simplifies to:
[tex]\[ x^2 + y^2 = 36 \frac{y^2}{x^2} \][/tex]
5. Clear the Fraction by Multiplying by [tex]\( x^2 \)[/tex]:
Multiply every term by [tex]\( x^2 \)[/tex] to clear the denominator:
[tex]\[ x^2 (x^2 + y^2) = 36 y^2 \][/tex]
6. Expand and Simplify:
Distribute [tex]\( x^2 \)[/tex]:
[tex]\[ x^4 + x^2 y^2 = 36 y^2 \][/tex]
Rearrange to get all terms on one side:
[tex]\[ x^4 + x^2 y^2 - 36 y^2 = 0 \][/tex]
The rectangular form of the given polar equation, in its general form, is:
[tex]\[ x^4 + x^2 y^2 - 36 y^2 = 0 \][/tex]
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