Relation Between Complex Slopes of Perpendicular Lines

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NEILS BOHR
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Homework Statement



what is the relation between complex slopes of two perpendicular lines?? :think:

Homework Equations





The Attempt at a Solution



i think it is same as the slopes of two st. lines that is the product shud be -1...but the answer given is sum of slopes is 0...
 
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NEILS BOHR said:

Homework Statement



what is the relation between complex slopes of two perpendicular lines?? :think:

Homework Equations





The Attempt at a Solution



i think it is same as the slopes of two st. lines that is the product shud be -1...but the answer given is sum of slopes is 0...

What is meant by "complex slopes"? What about the slope of a line is complex?