Doubts
Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents
Sign in to save progress →
Doubts
Sign in

Vector Algebra question

2016 · 10 Apr · Shift 1 · Q32
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Mathematics
  4. /Vector Algebra
  5. /2016 · 10 Apr · Shift 1 · Q32

Vector Algebra question

2016 · 10 Apr · Shift 1 · Q32

JEE MainMathematicsVector AlgebraMCQ+4 / −1
Let ABC be a triangle whose circumcentre is at P. If the position vectors of A, B, C and P are a→,b→,c→\overrightarrow a ,\overrightarrow b ,\overrightarrow ca,b,c and a→+b→+c→4{{\overrightarrow a + \overrightarrow b + \overrightarrow c } \over 4}4a+b+c​ respectively, then the position vector of the orthocentre of this triangle, is :
  1. A
    a→+b→+c→{\overrightarrow a + \overrightarrow b + \overrightarrow c }a+b+c
  2. B
    −(a→+b→+c→2)- \left( {{{\overrightarrow a + \overrightarrow b + \overrightarrow c } \over 2}} \right)−(2a+b+c​)
  3. C
    0→\overrightarrow 00
  4. D
    (a→+b→+c→2)\left( {{{\overrightarrow a + \overrightarrow b + \overrightarrow c } \over 2}} \right)(2a+b+c​)
PreviousNext

More from Vector Algebra

  • If the vectors AB=3i+4k and AC=5i−2j​+4k are the sides of a triangle ABC, then the length of the median through A is :2013 · MCQ
  • Let a and b be two unit vectors. If the vectors c=a+2b and d=5a−4b are perpendicular to each other, then the angle…2012 · MCQ
  • Let ABCD be a parallelogram such that AB=q​,AD=p​ and ∠BAD be an acute angle. If r is the vector that coincide with the altitude…2012 · MCQ
  • The vectors a and b are not perpendicular and c and d are two vectors satisfying b×c=b×d…2011 · MCQ
  • Let a, b, c be three non-zero vectors which are pairwise non-collinear. If a+3b is collinear with c and b+2c…2011 · MCQ
  • If the vectors a=i−j​+2k,b=2i+4j​+k and c=λi+j​+μk are…2010 · MCQ
  • The non-zero vectors are a,b and c are related by a=8b and c=−7b. Then the angle between a…2008 · MCQ
  • If u and v are unit vectors and θ is the acute angle between them, then 2u×3v is a unit vector for :2007 · MCQ