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Vector Algebra question

2011 · Shift 1 · Q39

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PYQ Library
JEE Advanced
Mathematics
Vector Algebra
2011 · Shift 1 · Q39

Vector Algebra question

2011 · Shift 1 · Q39

JEE AdvancedMathematicsVector AlgebraMultiple correct+4 / −1

The vector (s) which is/are coplanar with vectors

{\widehat i + \widehat j + 2\widehat k}

and

{\widehat i + 2\widehat j + \widehat k,}

and perpendicular to the vector

{\widehat i + \widehat j + \widehat k}

is/are

A
$\widehat j - \widehat k$
B
$-\widehat i + \widehat j$
C
$\widehat i - \widehat j$
D
$-\widehat j + \widehat k$

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