Q2 of 138 Page 24

For what value of λ are the vector and perpendicular to each other? Where :

and





Now



λ × 4 + 2 × (-9) + 1 × 2 = 0


λ × 4 = 16




λ = 4


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Find when

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Find when

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2

For what value of λ are the vector and perpendicular to each other? Where :

and

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For what value of λ are the vector and perpendicular to each other? Where :

and