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Condition for Two Lines to Be Perpendicular
For direction ratios:
$$a_1:b_1:c_1$$
and:
$$a_2:b_2:c_2$$
the lines are perpendicular if:
$$a_1a_2+b_1b_2+c_1c_2=0$$
Usage
- Used to test perpendicularity of two lines.
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Condition for Two Lines to Be Perpendicular
For direction ratios:
$$a_1:b_1:c_1$$
and:
$$a_2:b_2:c_2$$
the lines are perpendicular if:
$$a_1a_2+b_1b_2+c_1c_2=0$$
Usage
- Used to test perpendicularity of two lines.
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