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Find The Cross Product Of Two Vectors a = (3,4,5) and b = (7,8,9)

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 Find the cross product of two vectors = (3,4,5) and  = (7,8,9)

Solution:

The cross product is given as,



 


a x b = [(4×9)−(5×8)]i  −[(3×9)−(5×7)]j

a x b = (36−40)i −(27−35)j +(24−28)k 

a x b = −4i + 8j −4k

Answer: ∴ a x b = −4i + 8j −4k


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