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NIMCET 2021 Question Paper with solutions

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Question : 42

Total: 120

If e1=(1,1,1) & e2=(1,1,−1) and a and b are two vectors such that e1=2

. Then the angle between

is

cos−1(
−7
11
)
cos−1(
7
11
)
cos−1(
7
9
)
cos−1(
6√2
11
)

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