Q3 of 181 Page 1073

Write the value of λ so that the vectors and are perpendicular to each other.



Since these two vectors are perpendicular the dot product of these two vectors is zero.


i.e.: = 0


⇒


⇒2 + λ×( - 2) + 3 = 0


⇒5 = 2 λ


⇒ λ = 5/2


Ans: λ = 5/2


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