Let {\bo \A }=\stackrel{\^}{i}+2 \stackrel{\^}{j}. If {\bo \B} is a vector in \XY plane such that ({\bo \A} +{\bo \B }) .{\bo \B} =15 and {\bo \A} .{\bo \B} =6, then |{\bo \B} |

AP EAPCET 23-Aug-2021 Shift 2 Paper

Section: Mathematics

Question : 29 of 160

Marks: +1, -0

Let A=

. If B is a vector in XY plane such that (A+B).B=15 and A.B=6, then |B|

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