Q14 of 181 Page 1073

If and are such that is perpendicular to then find the value of λ.





⇒


Since


⇒ = 0


⇒


⇒(2 - λ)×3 + (2 + 2 λ)×1 = 0


⇒6 + 2 - 3 λ + 2 λ = 0


⇒ λ = 8


Ans: λ = 8


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