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Vector Algebra question

2013 · Shift 0 · Q46

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PYQ Library
JEE Main
Mathematics
Vector Algebra
2013 · Shift 0 · Q46

Vector Algebra question

2013 · Shift 0 · Q46

JEE MainMathematicsVector AlgebraMCQ+4 / −1

If the vectors

\overrightarrow {AB} = 3\widehat i + 4\widehat k

and

\overrightarrow {AC} = 5\widehat i - 2\widehat j + 4\widehat k

are the sides of a triangle

ABC,

then the length of the median through

A

is :

A
$\sqrt {18}$
B
$\sqrt {72}$
C
$\sqrt {33}$
D
$\sqrt {45}$

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