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Mathematics · 2023 · 1 mark
CBSE 2023 · Region 1 · Set 3 · Q18
For what value of λ, the projection of vector i +λ j on vector i - j is √ 2?
For what value of $\displaystyle \lambda$, the projection of vector $\displaystyle \hat{i}+\lambda \hat{j}$ on vector $\displaystyle \hat{i}-\hat{j}$ is $\displaystyle \sqrt{2}$ ?
Official answer
(A)
$\displaystyle -1$
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