Q14 of 181 Page 1073

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

For perpendicular vectors scalar product is zero.




(2 - λ).3 + (2 + 2λ).1 + (3 + λ).0 = 0


6 - 3λ + 2 + 2λ = 0


8 - λ = 0


λ = 8


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