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Parallel Lines
Two lines are parallel if their direction ratios are proportional:
$$\frac{a_1}{a_2}=\frac{b_1}{b_2}=\frac{c_1}{c_2}$$
Usage
- Used to test whether two lines have parallel directions.
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Parallel Lines
Two lines are parallel if their direction ratios are proportional:
$$\frac{a_1}{a_2}=\frac{b_1}{b_2}=\frac{c_1}{c_2}$$
Usage
- Used to test whether two lines have parallel directions.
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