Home
Class 11
PHYSICS
the value of (vecA+vecB)xx(vecA-vecB) is...

the value of `(vecA+vecB)xx(vecA-vecB)` is

A

0

B

`A^(2)-B^(2)`

C

`vecBxxvecA`

D

`2(vecBxxvecA)`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • UNITS, DIMENSION & MEASUREMENTS

    ERRORLESS |Exercise All Questions|333 Videos

  • WAVES AND SOUND

    ERRORLESS |Exercise SET|25 Videos

Similar Questions

Explore conceptually related problems

For vectors vecA=3hati-4hatj+5hatk and vecB=hati-hatj-hatk , calculate the value of (vecA+vecB)xx(vecA-vecB)

(a) Show that vector adition is commutative but vector subtraction is non-commutative . (b) For vectors vecA=3hati-4hatj+5hatk and vecB=hati-hatj-hatk , calculate the value of (vecA+vecB)xx(vecA-vecB)

What is the value of (vecA + vecB) * ( vecA xx vecB) ?

Find the value of (veca+vecb)xx[vecaxx((veca-vecb)xxvecb)]

If veca=hati+hatj+hatk , vecb=2hati+hatj-hatk and vecc=4hati+3hatj+hatk then value of ((veca+vecb)xx(veca -(veca-vecb)xxvecb)))xxvecc is

Let veca, vecb and vecc are three unit vectors in a plane such that they are equally inclined to each other, then the value of (veca xx vecb).(vecb xx vecc) + (vecb xx vecc). (vecc xx veca)+(vecc xx veca). (veca xx vecb) can be

vecA and vecB are two vectors. (vecA + vecB) xx (vecA - vecB) can be expressed as :

The value of veca.(vecb+vecc)xx(veca+vecb+vecc) , is

If veca=(3hati-hatj)/(sqrt(10)) and vecb=(hati+3hatj+hatk)/(sqrt(11)), then the value of (2veca+vecb)".[(veca xx vecb)xx(veca-3vecb)]

If veca and vecb are vectors in space given by veca=(hati-2hatj)/(sqrt(5)) vecb=(2hati+hatj+3hatk)/(sqrt(14)) then the value of (2veca+vecb).[(vecaxxvecb)xx(veca-2vecb)] , is

ERRORLESS -VECTORS-Exercise
  1. Two vector A and B have equal magnitudes. Then the vector A+B is perpe...

    Text Solution

    |

  2. Find the torque of a force vecF= -3hati+hatj+5hatk acting at the poin...

    Text Solution

    |

  3. the value of (vecA+vecB)xx(vecA-vecB) is

    Text Solution

    |

  4. If vecA and vecB are perpendicular vectors and vector vecA=5hati+7hatj...

    Text Solution

    |

  5. A body, under the action of a force vec(F)=6hati -8hatj+10hatk , acqui...

    Text Solution

    |

  6. Area of a parallelogram formed by vectors (3hati-2hatj+hatk)m and (hat...

    Text Solution

    |

  7. The position vectors of radius are 2hati+hatj+hatk and 2hati-3hatj+hat...

    Text Solution

    |

  8. What is the value of linear velocity, if vecomega=3hati-4hatj+hatk and...

    Text Solution

    |

  9. Dot product of two mutual perpendicular vector is

    Text Solution

    |

  10. When vecA.vecB=-|A||B|, then

    Text Solution

    |

  11. If |vecAxxvecB|=sqrt(3) vecA.vecB, then the value of |vecA+vecB| is

    Text Solution

    |

  12. A force vecF=3hati+chatj+2hatk acting on a particle causes a displacem...

    Text Solution

    |

  13. A force vecF=(5hati+3hatj)N is applied over a particle which displaces...

    Text Solution

    |

  14. If a vector vec(A) is parallel to another vector vec(B) then the resul...

    Text Solution

    |

  15. P, Q and R are three coplanar forces acting at a point and are in equi...

    Text Solution

    |

  16. P, Q and R are three coplanar forces acting at a point and are in equi...

    Text Solution

    |

  17. If a body is in equiliburium under a set of non-collinear forces, then...

    Text Solution

    |

  18. How many minimum number of coplanar vector having different magnitudes...

    Text Solution

    |

  19. As shown in figure the tension in the horizontal cord is 30 N. The wei...

    Text Solution

    |

  20. Two cars are moving in the same direction with the same speed 30 km//h...

    Text Solution

    |