Home
Class 9
MATHS
If P=[2" "2" "1],Q=[1" "2" "3],R={:[(1)...

If `P=[2" "2" "1],Q=[1" "2" "3],R={:[(1),(2),(3)]:},andS={:[(3),(2),(1)]:}`, then PR+QS=

A

[19]

B

[10]

C

[15]

D

[12]

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • MATRICES

    PEARSON IIT JEE FOUNDATION|Exercise LEVEL 2|20 Videos

  • LOGARITHMS

    PEARSON IIT JEE FOUNDATION|Exercise Level 3 MCQ|15 Videos

  • NUMBER SYSTEMS

    PEARSON IIT JEE FOUNDATION|Exercise Level 3|15 Videos

Similar Questions

Explore conceptually related problems

If P =[(3,4),(-1,2),(0,1)] and Q = [(-1, 2,1),(1,2,3)] , then (P^(T) + Q)=

If {:[(2,4),(p,1)]:}{:[(-1,2),(3,1)]:}={:[(10,q),(-2,r)]:} , then pq= _______ .

If {:((2,3),(p,1)):}{:((5,2),(-4,6)):}={:((-2,q),(16,r)):} , then 2p+r=

If P=[[1,2,-3] , [3,-1,2] , [-2,1,3]], Q=[[2,3,1] ,[3,1,2] , [1,2,3]] then find the matrix R such that P+Q+R is a zero matrix

Let P={p_(1), p_(2),p_(3), p_(4)} Q={q_(1),q_(2), q_(3), q_(4)} and R={r_(1),r_(2),r_(3),r_(4)} . If S_(10)={(p_(i), q_(j), r_(k)):i+j+k=10} , how many elements does S_(10) have ?

If P:Q:R=2:3:4 and P^(2)+Q^(2)+R^(2)=11600 , then find (P+Q-R)

If A = {p,q,r, s} and B = {1, 2, 3} , find which of the following is not a function from A to B? A. R_1={(p,1),(q,2),(r,1),(s,2)} B. R_2={(p,1),(q,1),(r,1),(s,1)} C. R_3={(p,1),(q,2),(p,2),(s,3)} D. R_4={(p,2),(q,3),(r,2),(s,2)} ANSWER: C

A=[{:(l_(1),m_(1),n_(1)),(l_(2),m_(2),n_(2)),(l_(3),m_(3),n_(3)):}] and B=[{:(p_(1),q_(1),r_(1)),(p_(2),q_(2),r_(2)),(p_(3),q_(3),r_(3)):}] Where p_(i), q_(i),r_(i) are the co-factors of the elements l_(i), m_(i), n_(i) for i=1,2,3 . If (l_(1),m_(1),n_(1)),(l_(2),m_(2),n_(2)) and (l_(3),m_(3),n_(3)) are the direction cosines of three mutually perpendicular lines then (p_(1),q_(1), r_(1)),(p_(2),q_(2),r_(2)) and (p_(3),q_(),r_(3)) are

PEARSON IIT JEE FOUNDATION-MATRICES-LEVEL 3
  1. If A={:[(p,-1),(q,1)]:},B={:[(1,-1),(1,2)]:}and(A+B)^(2)=A^(2)+2AB+B^(...

    Text Solution

    |

  2. If P={:[(2,-1),(-1,3)]:},Q={:[(1,-2),(-3,0)]:}andR={:[(-2,1),(2,-1)]:}...

    Text Solution

    |

  3. If {:((a,3),(4,5)):}{:((3,-2),(b,8)):}={:((30,20),(52,a)):}, then find...

    Text Solution

    |

  4. If P=[2" "2" "1],Q=[1" "2" "3],R={:[(1),(2),(3)]:},andS={:[(3),(2),(1...

    Text Solution

    |

  5. If y={:((4,-2),(3,0)):}andf(y)=y^(2)-y-6, find f(y).

    Text Solution

    |

  6. If the matrix A={:[(5,-3),(5,-3)]:}," then "A^(n+1) = .

    Text Solution

    |

  7. If A(x)={:[(e^(x),e^(x)),(e^(-x),e^(-x))]:} then A(x) A(y)=

    Text Solution

    |

  8. If A={:[(6,-7,1),(3,-2,1)]:}andB={:[(5,1,2),(-4,3,-5)]:} then find X s...

    Text Solution

    |

  9. If {:[(2,4),(p,1)]:}{:[(-1,2),(3,1)]:}={:[(10,q),(-2,r)]:}, then pq= ...

    Text Solution

    |

  10. If A={:[(-13,24),(-7,13)]:}, then A^(8) = .

    Text Solution

    |

  11. If A+B={:[(8,-9),(3,5)]:}andA-B={:[(6,5),(1,7)]:}, the A= .

    Text Solution

    |

  12. If A={:[(7,9),(3,8)]:}andB={:[(13),(18)]:} then find the matrix X such...

    Text Solution

    |

  13. If A={:[(a,b),(2,-1)]:},B={:[(1,1),(4,-1)]and(A+B)^(2)=A^(2)+B^(2), th...

    Text Solution

    |

  14. If A={:[(6,x),(7,-6)]:}andA^(2)=I, then x= .

    Text Solution

    |

  15. If A-B={:[(18,1,-9),(11,12,2)]:}andA+3B={:[(26,1,3),(-13,-16,10)]:}, t...

    Text Solution

    |

  16. If A={:[(1,4),(-2,5)]:}andB={:[(-6,-1),(-8,2)]:}, then AB + BA = .

    Text Solution

    |

  17. If A={:[(2,1),(0,3)]:}andf(x)=x^(2)-4x+3, then find f(A).

    Text Solution

    |

  18. If[5" "6]{:[(1,-3),(-1,x)]:}{:[(3),(4)]:}=[-15], then the value of x ...

    Text Solution

    |

  19. If A={:[(1,-4),(3,2)]:}andB={:[(6,-1),(3,2)]:}, then find the matrix C...

    Text Solution

    |

  20. If A-B^(T)={:[(-2,2,1),(3,6,5)]:}andA^(T)+B={:[(-4,5),(8,-2),(9,1)]:},...

    Text Solution

    |