JEE Mains Model Paper 22

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Question : 75 of 90

Marks: +1, -0

If

−

a

,

−

b

and

−

c

are unit vectors then |

−

a

−

−

b

|2 + |

−

b

−

−

c

|2 + |

−

c

−

−

a

|2 does not exceed

4
9
8
6

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