Question

this question is about vectors pls solve it ...........

Answer 1

hello friend...!!!

in the above question , we should find the value of ' n ' ,

⇒ given that the two vector are perpendicular ,

so the dot product ( scalar product ) is equal to zero .

therefore ,

2i + 2j - k and 3i -6j +nk , 

therefore ,

6 - 12 - n = 0 

n = - 6 

therefore the value of n is -6 .

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hope it helps...!!!