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

3D Geometry question

2022 · 27 Jun · Shift 1 · Q31
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Mathematics
  4. /3D Geometry
  5. /2022 · 27 Jun · Shift 1 · Q31

3D Geometry question

2022 · 27 Jun · Shift 1 · Q31

JEE MainMathematics3D GeometryMCQ+4 / −1
If two straight lines whose direction cosines are given by the relations l+m−n=0l + m - n = 0l+m−n=0, 3l2+m2+cnl=03{l^2} + {m^2} + cnl = 03l2+m2+cnl=0 are parallel, then the positive value of c is :
  1. A
    6
  2. B
    4
  3. C
    3
  4. D
    2
PreviousNext

More from 3D Geometry

  • The shortest distance between the lines 2x−3​=3y−2​=−1z−1​ and 2x+3​=1y−6​=3z−5​, is :2022 · MCQ
  • Let P(−2,−1,1) and Q(1756​,1743​,17111​) be the vertices of the rhombus PRQS. If the direction ratios of the diagonal RS are α,−1,β, where both α and β…2022 · Numerical
  • Let the image of the point P(1, 2, 3) in the line L:3x−6​=2y−1​=3z−2​ be Q. Let R (α, β, γ) be a point that divides internally the line segment PQ in the ratio 1 : 3. Then the…2022 · Numerical
  • Consider a triangle ABC whose vertices are A(0, α, α), B(α, 0, α) and C(α, α, 0), α> 0. Let D be a point moving on the line x + z − 3 = 0 = y and G be the centroid of Δ ABC. If…2022 · Numerical
  • The distance of line 3y−2z−1=0=3x−z+4 from the point (2, − 1, 6) is :2021 · MCQ
  • Let the position vectors of two points P and Q be 3 i−j​ + 2 k and i + 2 j​− 4 k, respectively. Let R and S be two points such that the direction ratios of lines PR and QS are…2021 · MCQ
  • If the foot of the perpendicular from point (4, 3, 8) on the line L1​:lx−a​=3y−2​=4z−b​, l e 0 is (3, 5, 7), then the shortest distance between the line L1 and line L2​:3x−2​=4y−4​=5z−5​…2021 · MCQ
  • The lines x = ay − 1 = z − 2 and x = 3y − 2 = bz − 2, (ab e 0) are coplanar, if :2021 · MCQ