Home
Class 12
MATHS
Find the angle between the lines whose d...

Find the angle between the lines whose direction cosines are given by the equations. `3l + m + 5n = 0,6mn - 2nl + 5lm = 0`.

Promotional Banner

Topper's Solved these Questions

  • SIMILAR TEST 3

    ARIHANT PRAKASHAN|Exercise SECTION C|14 Videos

  • SIMILAR TEST 3

    ARIHANT PRAKASHAN|Exercise SECTION C|14 Videos

  • RELATIONS AND FUNCTIONS

    ARIHANT PRAKASHAN|Exercise Chapter Test (6 MARKS Questions) |3 Videos

  • THREE DIMENSIONAL GEOMETRY

    ARIHANT PRAKASHAN|Exercise CHAPTER TEST|24 Videos

Similar Questions

Explore conceptually related problems

Prove that the acute angle between the lines whose direction cosines are given by the relation l+ m+n=0 and l^2+m^2-n^2=0 and pi/3

Find the angle between the lines whose dcs. L, m, n are connected by the relation, 3l+m+5n=0 and 6mn-2nl+5lm=0

Find the angles between the pair of lines whose slopes are , sqrt3 ,-1 .

Find the angle between the lines whose direction ratios are proportional to a,b,c and b-c,c-a,a-b,.

ARIHANT PRAKASHAN-SIMILAR TEST 3 -SECTION B
  1. Solve the following LPP graphically Minimise Z = 5x+10 y Subject ...

    Text Solution

    |

  2. Prove that the following. [[1+a,1,1],[1,1+b,1],[1,1,1+c]] = abc(1+1/...

    Text Solution

    |

  3. Show that the following system is inconsistent. (a-b)x+(b-c)y+(c-a)z...

    Text Solution

    |

  4. If A=[{:(3,-2),(4,-2):}], then find k such that A^(2)=kA-2I .

    Text Solution

    |

  5. On a multiple choice examination with three possible options for each ...

    Text Solution

    |

  6. An instructor has a question bank consisting of 300 easy true/false qu...

    Text Solution

    |

  7. If y = log (x+sqrt(1+x^(2))) , then find y(2)(0).

    Text Solution

    |

  8. Differentiate the following function w.r.t. x, (logx)^(x)+x^(logx).

    Text Solution

    |

  9. Find the equation of normal to the curve y = e^(sin x) " at "x = pi...

    Text Solution

    |

  10. Find the approximate value of f(2.01), where f(x) = 4x^(2) + 5x+2

    Text Solution

    |

  11. Discuss the continuity of the function f(x) at x=1/2 , when f(x) is de...

    Text Solution

    |

  12. Integrate int cot^(-1) x dx.

    Text Solution

    |

  13. Integrate int sqrt (7x-10 -x^(2)) dx

    Text Solution

    |

  14. Evaluate int(0)^(pi) |cos x |dx.

    Text Solution

    |

  15. Find the area bounded by y = |x-1| and y=1 .

    Text Solution

    |

  16. Solve (dy)/(dx) +(sec x) y = tan x.

    Text Solution

    |

  17. Find the area of the parallelogram whose diagonals are the vectors 3ha...

    Text Solution

    |

  18. Find the angle between the lines whose direction cosines are given by ...

    Text Solution

    |

  19. Prove that the point (1,2,3),(-1,1,0),(2, 1, 3) and (1, 1, 2) are copl...

    Text Solution

    |

  20. Find the points of intersection of the line (x-1)/1=(y+2)/ 3 =(z-1)/(...

    Text Solution

    |