Home
Class 12
MATHS
The projection of the vector overset(^)...

The projection of the vector `overset(^)(i) - 2 overset(^)(j) + overset(^)(k)` on the vector `4 overset(^)(i) 4 overset(^)(j) + 7 overset(^)(k)` is

A

17/9

B

19/9

C

`7//3`

D

`1//9`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • MODEL TEST PAPER 10

    KCET PREVIOUS YEAR PAPERS|Exercise MATHEMATICS|60 Videos

  • MODEL TEST PAPER 4

    KCET PREVIOUS YEAR PAPERS|Exercise Mathematics|60 Videos

Similar Questions

Explore conceptually related problems

The projection of the vector 2overset(^)(i)+overset(^)(j)-3overset(^)(k) on the vector overset(^)(i)-2overset(^)(j)+overset(^)k is...

A unit vector perpendicular to the plane containing the vectors overset(^)( i) - overset(^)(j)+overset(^)(k ) and overset(^)(-i)+overset(^)(j)+overset(^)(k) is...

For any three vectors overset(to)(a) , overset(to)(b) and overset(to) ( c ) , prove that vectors overset(to)(a) - overset(to)(b) , overset(to)(b) - overset(to) ( c), overset(to)(c) - overset(to)(a) are coplanar.

The vectors 2overset(hat)i + 3 overset(hat)j-4overset(hat)kand aoverset(hat)i + boverset(hat)j - coverset(hat)(k) are perpendicular if

If |overset(to)(a) + overset(to)(b)| =| overset(to)(a) - overset(to)(b) | , prove that overset(to)(a) and overset(to)(b) are perpendicular

Write the projection of the vector 7hat(i) + hat(j) - 4hat(k) on the vector 2hat(i) + 6hat(j) + 3hat(k) .

Complete the reaction R- overset(O)overset(||)C-CH_3 overset(NaOX)to

KCET PREVIOUS YEAR PAPERS-MODEL TEST PAPER 3-(MATHEMATICS)
  1. underset ( x to oo) (lim) underset(r=1)overset(n-1) (sum) sqrt((n+r)/(...

    Text Solution

    |

  2. If bar(a) = 3 overset(^)(i) + 2 overset(^)(j), bar(b) = 2 overset(^)(i...

    Text Solution

    |

  3. The projection of the vector overset(^)(i) - 2 overset(^)(j) + overse...

    Text Solution

    |

  4. If theta is the angle between the vectors overset(^)(i) + overset(^)(j...

    Text Solution

    |

  5. The non-zero vectors bar(a) , bar(b) , bar(c ) holds | (bar(a) .bar(b...

    Text Solution

    |

  6. If bar(a) = overset(^)(i) + overset(^)(j) - overset(^)(k), bar(b) = 2 ...

    Text Solution

    |

  7. The value of (sec x + tan x -1)/(tan x - sec x +1), if cosec 2x =2 is

    Text Solution

    |

  8. The value of cosec 20^(@).cosec40^(@).cosec60^(@).cosec80^(@) is

    Text Solution

    |

  9. If cot A bot B -=2, cosA cos B =2//3, then cos (A + B)=

    Text Solution

    |

  10. The value of tan (2 tan^(-1). (1)/(5) - (pi)/(4) ) is equal to

    Text Solution

    |

  11. In a triangle ABC , sum r cos A //2 =

    Text Solution

    |

  12. In a triangle A BC, (1)/(bc) + (1)/(ca) + (1)/(ab) = (k)/(2), then k=

    Text Solution

    |

  13. Square root of -3 -4i is

    Text Solution

    |

  14. Find the value of log (- theta) and hence the value of log (- 10 theta...

    Text Solution

    |

  15. The area of a triangle fanned by the complex numbers 2+I,-2-I, 1+i in ...

    Text Solution

    |

  16. If 3x +2y- 1 =0 is a tangent to a hyperbola (x^2)/(16) - (y^2)/(9)=1, ...

    Text Solution

    |

  17. The centre, radius of the circle r^(2) - 8 r cos (theta - (pi)/(3) ) +...

    Text Solution

    |

  18. The line x-y + k =0 is normal to the ellipse (x^2)/(9) + (y^2)/(16)=1,...

    Text Solution

    |

  19. The equation of the circle whose radius is 3 and touches internally wi...

    Text Solution

    |

  20. The radical centre of the circle x^2 + y^2 + 4x + 7 =0, 2 x^2 + 2y^2 +...

    Text Solution

    |