Home
Class 12
MATHS
If vec a=3hati-hatj+4hatk, vecb=2hati+3h...

If `vec a=3hati-hatj+4hatk, vecb=2hati+3hatj-hatk` and `vec c=-5hati+2hatj+3hatk`, then `vec a.(vecb xx vec c)` is

A

100

B

110

C

109

D

108

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • JULY 2016

    GURUKUL PUBLICATION - MAHARASHTRA PREVIOUS YEAR PAPERS|Exercise Section-II|20 Videos

Similar Questions

Explore conceptually related problems

If veca = 3hati - hatj - 4hatk , vecb = -2hati + 4hatj - 3hatk and vec c = hati + 2hatj - hatk then |3veca - 2vec b + 4vec c | is equal to

If veca=x hati+y hatj+z hatk, vecb=y hati+z hatj+x hatk, and vec c=z hati+x hatj+y hatk , then veca xx (vecb xx vec c) is :

If veca=2hati+3hatj+hatk, vecb=hati-2hatj+hatk and vecc=-3hati+hatj+2hatk , then [veca vecb vecc]=

If veca=7hati+3hatj-6hatk , vecb=2hati+5hatj-hatk and vecc=-hati+2hatj+4hatk . Find (veca-vecb)xx(vecc-vecb) .

If vec(a) = hati - 2hatj - 3hatk, vec(b) = 2hati +hatj - hatk and vec(c) = hati +3hatj - 2hatk then find vec(a) xx (vec(b) xx vec(c)) .

If veca = 5 hati- 4 hatj + hatk, vecb =- 4 hati + 3 hatj - 2 hatkand vec c = hati - 2 hatj - 2 hatk, then evaluate vec c. (veca xx vecb)

If vec(a) = hati - 2hatj - 3hatk, vec(b) = 2 hati - hatj - hatk and vec(c) = hati +3 hatj - 2hatk find (vec(a) xx vec(b)) xx vec(c)

Let veca=2hati+3hatj+4hatk, vecb=hati-2hatj+jhatk and vecc=hati+hatj-hatk. If vecr xx veca =vecb and vecr.vec c=3, then the value of |vecr| is equal to

If vecA=2hati-hatj-3hatk and vecB=hati+2hatj-hatk and vec C=hati+3hatj-2hatk find (vecAxxvecB)xxvecC

If vecA=2hati+3hatj-hatk and vecB=-hati+3hatj+4hatk then projection of vecA on vecB will be

GURUKUL PUBLICATION - MAHARASHTRA PREVIOUS YEAR PAPERS- FEBRUARY 2020-All Questions
  1. In triangleABC , if a=2,b=3 and sinA=2/3, then angleB=

    Text Solution

    |

  2. If vec a=3hati-hatj+4hatk, vecb=2hati+3hatj-hatk and vec c=-5hati+2hat...

    Text Solution

    |

  3. The cartesian equation of the line passing through the points A(4, 2, ...

    Text Solution

    |

  4. If the line vecr=(hati-2hatj+3hatk)+lambda(2hati+hatj+2hatk) is parall...

    Text Solution

    |

  5. If {(f(x) = 1-x), (for 0 lt x le 1),(= k , for x = 0)} is continuous a...

    Text Solution

    |

  6. The function f(x) = x^x is minimum at x =

    Text Solution

    |

  7. If int(0^k) 4x^3dx=16 then the value of k is

    Text Solution

    |

  8. Order and degree of differential equations (d^4y)/(dx^4)=[1+((dy)/(dx)...

    Text Solution

    |

  9. Answer the following questions: Write the dual of p^^~p=F

    Text Solution

    |

  10. Answer the following questions: Find the general solution of tan 2x = ...

    Text Solution

    |

  11. Answer the following questions: Differentiate sin(x^2 + x) w.r.t. x

    Text Solution

    |

  12. Answer the following questions: If X rarr B(n,p) and n = 10. E(X)= 5 ,...

    Text Solution

    |

  13. Using truth table verify that ~(p vv q) -= ~p ^^ ~q

    Text Solution

    |

  14. Find the matrix of co - factors for matrix [[1,3],[4,-1]]

    Text Solution

    |

  15. Find the angle between the lines represented by 3x^2 + 4xy-3y^2 = 0

    Text Solution

    |

  16. bar a and bar b are non- collinear vectors. If barc = (x-2)bar a+bar b...

    Text Solution

    |

  17. If a line makes angles 90^@, 135^@, 45^@ with X,Y and Z axes respectiv...

    Text Solution

    |

  18. Express the following circuit in symbolic form S1,S2,S3

    Text Solution

    |

  19. Differentiate log(sec x + tan x) w.r.t. x

    Text Solution

    |

  20. Evaluate int 1/(x^2+4x+8) dx

    Text Solution

    |