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Questions  >>  JEEMAIN and NEET  >>  Mathematics  >>  Class12  >>  Vector Algebra
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Q)

In a rt. angled triangle $ABC$ if hypotenuse, $AB=p$, then $\overrightarrow {AB}.\overrightarrow {AC}+\overrightarrow {BC}.\overrightarrow {BA}+\overrightarrow {CA}.\overrightarrow {CB}$= ?

$(a)\:\:2p^2\:\:\:\qquad\:\:(b)\:\:\large\frac{p^2}{2}$$\:\:\:\qquad\:\:(c)\:\:p^2\:\:\:\qquad\:\:(d)\:\:3p^2$

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