Home
Class 12
MATHS
If vec alpha|=4, |vec beta|=3 and |vec ...

If `vec alpha|=4, |vec beta|=3` and `|vec alpha xx vec beta|=6`, then the angle between the vectors `vec alpha` and `vec beta` is -

A

`(pi)/(6)`

B

`(pi)/(3)`

C

`(2pi)/(3)`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • MCQ ZONE

    CHHAYA PUBLICATION|Exercise Question Paper 3|80 Videos

  • MCQ ZONE

    CHHAYA PUBLICATION|Exercise Question Paper 4|80 Videos

  • MCQ ZONE

    CHHAYA PUBLICATION|Exercise Question Paper 7|80 Videos

  • MAXIMA AND MINIMA

    CHHAYA PUBLICATION|Exercise Sample Questions for Competitive Examination E|2 Videos

  • MCQ ZONE 3

    CHHAYA PUBLICATION|Exercise Question Paper 8|30 Videos

Similar Questions

Explore conceptually related problems

If |vec(a)|= 3 , |vec(b)| = 4 and | vec (a) xx vec(b)|= 6 , then find the angle between the vectors vec(a) and vec(b)

If | vec(a)|= 4 , |vec(b)| = 2 sqrt(3) and |vec(a) xx vec(b)| = 12, then the angle between the vectors vec (a) and vec (b) is -

If vec | a| = sqrt(3) , |vec(b)| = 2 and vec(a) . vec(b) = sqrt(6) , then find angle between the vectors vec(a) and vec(b)

Two vectors vec(a) and vec (b) are such that |vec(a).vec(b)| = |vec(a) xx vec(b)| , then find the angle between the vectors vec(a) and vec(b) .

If | vec a|+| vec b|=| vec c| and vec a+ vec b= vec c , then find the angle between vec a and vec bdot

If vec a,vec b, vec c be three vectors such that vec a+vec b+vec c=0 , |veca|=3 , |vecb|=5 and |vecc|=7 find the angle between the vectors veca and vec b .

If vec (a) + vec(b) + vec (c ) = vec(0) and |vec(a)| = 6 , |vec (b)| = 4 and |vec(c )| = 3 find the cosine of the angle between the vectors vec(b) and vec(c )

If vec(a) , vec(b)and vec(a) xx vec(b) are three unit vectors , find the angles beween the vectors vec(a) and vec(b)

If vec(a) + vec (b)+vec(c ) = vec (0) and |vec(a)| = 3 , |vec(b)| = 5 and |vec(c)| = 7 , , find the angle between the vectors vec(a) and vec(b)

If two vectors vec(a) and vec (b) are such that |vec(a) . vec(b) | = |vec(a) xx vec(b)|, then find the angle the vectors vec(a) and vec (b)

CHHAYA PUBLICATION-MCQ ZONE -Question Paper 2
  1. The value k for which the line (x-1)/(8)=(y+2)/(k)=(z-3)/(-6) is perp...

    Text Solution

    |

  2. A fair die is thrown till we get 6, then the probability of getting 6 ...

    Text Solution

    |

  3. If vec alpha|=4, |vec beta|=3 and |vec alpha xx vec beta|=6, then the...

    Text Solution

    |

  4. The equation of the plane through the line of intersection of the pla...

    Text Solution

    |

  5. If l, m, n are p -th, q-th and r-th terms of a GP, all positive, then ...

    Text Solution

    |

  6. If the straight line joining the points A(3, 4, -1) and B(4, p, 2) i...

    Text Solution

    |

  7. A and B are two events such that P(A cup B)=(3)/(4), P(A cap B)=(1)/(...

    Text Solution

    |

  8. One root of the equation |(x+a,b,c),(b,x+c,a),(c,a,x+b)|=0 is -

    Text Solution

    |

  9. The coordinates of the foot of the perpendicular drawn from the point ...

    Text Solution

    |

  10. If omega is a cube root of unity then the value of |(1,omega,omega^(...

    Text Solution

    |

  11. The angle between the pair of straight lines whose direction cosines a...

    Text Solution

    |

  12. If A and B are two events such that P(A cup B)=(5)/(6), P(A cap B)=(1)...

    Text Solution

    |

  13. If A=[(1,0,2),(-1,1,-2),(0,2,1)]" and Adj "A=[(5,a,-2),(1,1,0),(-2,-2,...

    Text Solution

    |

  14. If the straight lines (x-2)/(a)=(y+3)/(-4)=(z-2)/(3) and (x+2)/(3)=(y...

    Text Solution

    |

  15. The coordinates of the point where the line (x-3)/(1)=(y-4)/(2)=(z-5)...

    Text Solution

    |

  16. If a=1+2+4+… to n terms, b=1+3+9… to n terms and c=1+5+25+… to n term...

    Text Solution

    |

  17. The distance between the point (-1, -5, -10) and the point of interse...

    Text Solution

    |

  18. If the direction ratios of two lines are 2, -3, 6 and 1, -2, 2 respect...

    Text Solution

    |

  19. A coin and a six faced die, both unbiased, are thrown simultaneously....

    Text Solution

    |

  20. A number is chosen at random among the first 120 natural numbers. What...

    Text Solution

    |