Home
Class 12
MATHS
The centre of the circle given by vec...

The centre of the circle given by ` vec r.( hat i+2 hat j+2 hat k)=15a n d| vec r.( hat j+2 hat k)|=4` is a. `(0,1,2)` b. `(1,3,4)` c. `(-1,3,4)` d. none of these

Promotional Banner

Topper's Solved these Questions

  • THEORY OF EQUATIONS

    CENGAGE PUBLICATION|Exercise JEE ADVANCED (Numerical Value Type )|1 Videos
  • THREE-DIMENSIONAL GEOMETRY

    CENGAGE PUBLICATION|Exercise ARCHIVES INTEGER TYPE|1 Videos

Similar Questions

Explore conceptually related problems

Find vec adot vec b when: vec a= hat j- hat k\ a n d\ vec b=2 hat i+3 hat j-2 hat k

The angle between i and line of the intersection of the plane vec r . ( hat i+2 hat j+3 hat k)=0 and vec r . (3 hat i+3 hat j+ hat k)=0 is a. cos^(-1)(1/3) b. cos^(-1)(1/(sqrt(3))) c. cos^(-1)(2/(sqrt(3))) d. none of these

Find | vec axx vec b| , if vec a= hat i-7 hat j+7 hat k and vec b=3 hat i-2 hat j+2 hat kdot

A unit vector parallel to the intersection of the planes vec r. \ ( hat i- hat j+ hat k)=5 \ a n d \ vec r. \ (2 hat i+ hat j-3 hat k)=4 a. (2 hat i+5 hat j-3 hat k)/(sqrt(38)) b. (-2 hat i+5 hat j-3 hat k)/(sqrt(38)) c. (2 hat i+5 hat j-3 hat k)/(sqrt(38)) d. (-2 hat i-5 hat j-3 hat k)/(sqrt(38))

If vec a= 2 hat i- hat j+ hat k and vec b = - hat i+3 hat j+4 hat k ,then veca.vecb =

If vec (a) = 2 hat (i) - 3 hat (j) + 4 hat (k) and vec(b) = - 6 hat (i) + 9 hat (j) - 12 hat (k) , then

if vec a = 2 hat i- 3 hat j+hat k and vec b = hat i+2 hat j- 3hat k then vec aXvec b is

Find the area of triangle (i) drawn on the vectors vec(a) = 6 hat (i) + 2 hat (j) - 3 hat (k) and vec (b) = 4 hat (i) - hat (j) - 2 hat (k)

Find the vector equation of the line passing through (1,2,3) and parallel to the planes vec r.( hat i- hat j+2 hat k)=5a n d vec r.(3 hat i+ hat j+ hat k)=6.

If vec (a)= 2 hat (i) - hat (j) + hat (k) and vec(b) = - hat (i) + 3 hat (j) + 4 hat (k) , then value of vec (a). vec(b) is -

CENGAGE PUBLICATION-THREE DIMENSIONAL GEOMETRY-All Questions
  1. Distance of the point P( vec p) from the line vec r= vec a+lambda ve...

    Text Solution

    |

  2. The direction ratios of a normal to the plane through (1,0,0)a n d(...

    Text Solution

    |

  3. The centre of the circle given by vec r.( hat i+2 hat j+2 hat k)=15...

    Text Solution

    |

  4. Two systems of rectangular axes have the same origin. If a plane cu...

    Text Solution

    |

  5. The plane, which passes throught the point (3,2,0) and line (x - 3)/1 ...

    Text Solution

    |

  6. The lines (x-2)/1=(y-3)/1=(z-4)/-k and (x-1)/k=(y-4)/2=(z-5)/1 are co...

    Text Solution

    |

  7. The point of intersection of the lines (x-5)/3=(y-7)/(-1)=(z+2)/1 and ...

    Text Solution

    |

  8. A tetrahedron has vertices of O(0, 0, 0), A(1, 2, 1), B(2, 1, 3) and C...

    Text Solution

    |

  9. The radius of the circle in which the sphere x^(2)+y^(2)+z^(2)+2x-2y-4...

    Text Solution

    |

  10. A sphere of constant radius 2k passes through the origin and meets t...

    Text Solution

    |

  11. A plane passes through a fixed point (a,b,c). The locus of the foot of...

    Text Solution

    |

  12. Equation of the plane containing the straight line (x)/(2)= (y)/(3)= (...

    Text Solution

    |

  13. The equation of the plane through the intersection of the planes x+2y...

    Text Solution

    |

  14. The plane 4x+7y+4z+81=0 is rotated through a right angle about its ...

    Text Solution

    |

  15. The vector equation of the plane passing through the origin and the ...

    Text Solution

    |

  16. The lines vec r= vec a+lambda( vec bxx vec c)a n d vec r= vec b+mu( v...

    Text Solution

    |

  17. The projection of the line (x+1)/(-1)=(y)/(2)=(z-1)/(3) on the plane x...

    Text Solution

    |

  18. The direction cosines of a line satisfy the relations lamda(l+m)=nandm...

    Text Solution

    |

  19. The intercepts made on the axes by the plane which bisects the line jo...

    Text Solution

    |

  20. The pair of lines whose direction cosines are given by the equation...

    Text Solution

    |