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[" commen "vec a" and "vec b" be such th...

[" commen "vec a" and "vec b" be such that "|vec a|=3" and "1hat b=(sqrt(2))/(3)" ,then is is a mill "],[" inthe angle between "vec a" and "vec b" is "],[[" (B) "pi/4," (C) "pi/3," (D) "pi/2]]

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