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What will be the projection of vector \(\vec{A}=\hat{i}+\hat{j}+\hat{k}\) on vector \(\vec{B}=\hat{i}+\hat{j}\)? [JEE Ma…

Q1

What will be the projection of vector \(\vec{A}=\hat{i}+\hat{j}+\hat{k}\) on vector \(\vec{B}=\hat{i}+\hat{j}\)?

[JEE Main 2019, 11 January (Shift 1)]

a

\(2(\overset{^}{i}+\overset{^}{j}+\overset{^}{k})\)

b

\(\sqrt{2}(\overset{^}{i}+\overset{^}{j})\)

c

\((\overset{^}{i}+\overset{^}{j})\)

d

\(\sqrt{2}(\overset{^}{i}+\overset{^}{j}+\overset{^}{k})\)

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