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harshakantha
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Given that a=(a1,a2,a3) and b=(b1,b2,b3) by applying the Pythagoras rule, Prove that a1b1+a2b2+a3b3=0 if a and b perpendicular
The Scalar product a.b = |a||b|CosQ -------------(1)
if two vectors are perpendicular; Q=90degrees
then CosQ=0;
from (1)
a.b=0
(a1,a2,a3).(b1,b2,b3)=0
a1b1+a2b2+a3b3=0
is this a correct solution for the above Question?
please can someone give me an opinion!
The Scalar product a.b = |a||b|CosQ -------------(1)
if two vectors are perpendicular; Q=90degrees
then CosQ=0;
from (1)
a.b=0
(a1,a2,a3).(b1,b2,b3)=0
a1b1+a2b2+a3b3=0
is this a correct solution for the above Question?
please can someone give me an opinion!
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