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Question 29: If two vectors areperpendicular then which ofthe following is true?a.a. b = 0b.| a + b ] = | a-bC. The angle betweenvectors is 90°d.All of the aboveChoose correct option |
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Answer» b=0Explanation:Vector a is PERPENDICULAR to vector b if their dot product, a⋅b is 0 .This is because a⋅b is defined as |a||b|cos(θ) where θ is the angle between a and b .That is, it is the product of their magnitudes and the cosine of the angle between them. Of course, if the angle is 90∘ , then cos(90∘)=0 and so a⋅b will be 0 PLZ mark me as a BRAINLIST. Have a NICE day.Hope my answer helped |
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