Why in cross product a×a=0 product inclide sin and dot productncosine?
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a x b = ab sin(x)......... x is angle b/w a & b....
a. b = ab cos(x).........
a x a is 0 because they are same vectors, angle between them is 0°. Sin (0°) = 0
a. b = ab cos(x).........
a x a is 0 because they are same vectors, angle between them is 0°. Sin (0°) = 0
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