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Home  >>  EAMCET  >>  Physics
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If $\overrightarrow {A}, \overrightarrow {B}$ are perpendicular vectors $ \overrightarrow {A}=5 \hat {i}+7 \hat {j}-3 \hat {k}.\quad \overrightarrow {B}=2 \hat {i}+2 \hat {j}-c \hat {k}$. The value of $\mathit{c}\;$ is:

\[(a)\;-2 \qquad (b)\;8 \qquad (c)\;-7 \qquad (d)\; -8\]
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(d) -8
answered Nov 7, 2013 by pady_1
 

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