Question

69 points....xD
If the line segment joining the points (a,b) and (c,d) subtends right angle at the origin then prove that ac+bd=0.​

Answer 1

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Answer:

IF THE LINE SEGMENT JOINING POINTS (a,b) and (c,d) THEN THEY SHOULD BE ON X AXIS AND Y AXIS BECAUSE THEY SUBSTEND RIGHT ANGLE AT ORIGIN

LET US TAKE BOTH POINT a and d BE ON ORIGIN

THEN

ac+bd=0

0×a+b×0=0

0+0=0

HENCE PROVED

Answer 2

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This is the best possible answer

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