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Vector Algebra question

2008 · Shift 1 · Q27
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  5. /2008 · Shift 1 · Q27

Vector Algebra question

2008 · Shift 1 · Q27

JEE AdvancedMathematicsVector AlgebraMCQ+3 / −1
The edges of a parallelopiped are of unit length and are parallel to non-coplanar unit vectors a→ , b→,c→\overrightarrow a \,,\,\overrightarrow b ,\overrightarrow ca,b,c such that a^ . b^=b^ . c^=c^ . a^=12.\widehat a\,.\,\widehat b = \widehat b\,.\,\widehat c = \widehat c\,.\,\widehat a = {1 \over 2}.a.b=b.c=c.a=21​. Then, the volume of the parallelopiped is :
  1. A
    12{1 \over {\sqrt 2 }}2​1​
  2. B
    122{1 \over {2\sqrt 2 }}22​1​
  3. C
    32{{\sqrt 3 } \over 2}23​​
  4. D
    13{1 \over {\sqrt 3 }}3​1​
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