Let a-k- and b-k-Then the unit vector in the direction of a-b is -2 marks-

Given : nbsp;a=î+ĵ k̂ and b=î ĵ+k̂ ⇒a+b=2î=c (say) | nbsp;c|=2 Thus, required unit vector is nbsp; ĉ= nbsp;c| nbsp;c|=2î2=nbsp;i ...

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Section Formula

Let a=î+ĵ-k̂ ...

Question

Let $\to a =^i +^j -^k$ and $\to b =^i -^j +^k .$
Then the unit vector in the direction of $\to a + \to b$ is

[2 marks]

^i +^j

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2^i

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^j

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^i

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Similar questions

\to a =^i +^j -^k, \to b = -^i + 2^j +^k, \to c = -^i + 2^j -^k .

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