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An Intiative by Sri Chaitanya
a
2a→⋅b→=|b→|2
b
a→⋅b→=|b→|2
c
Least value of |a→⋅b |→+1|b→|2+2 is 2
d
least value of |a→⋅b→|+1|b→|2+2 is 2-1
answer is A.
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