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Math Help - Which topics are the following questions from?

  1. #1
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    Which topics are the following questions from?

    Which topics(in mathematics) are the following questions from?
    Ok...we have this entrance exam which asked the following questions previous year. I don't even know which topics do these belong to.
    Please tell me the following questions come under which category.
    3. The value of (E 1) is (where E is shift operator)
    a) E 1 Δ b) E 1 ▽ c) E 1 δ d) None of these

    29. In LPP ΔJ for all basic variables is equal to :
    a) 1 b) 1 c) 0 d) None

    37. If f (x) = 1/(x^2)
    , then the value of divided difference f (a, b) is :


    The value of Δ^10( 1-ax)(1-bx^2 )(1-cx^3 )(1-dx^4 )
    is :

    48. If U0 = 580, U1 = 556, U2 = 520 and U4 = 385, then the value of U3 is :
    a) 400 b) 413 c) 465 d) 460

    65. If U0 = 3, U1 = 12, U2 = 81, U3 = 200, U4 = 100 and U5 = 8, then the value of D 5U0
    is:
    a)700 b) 755 c) 756 d) None

    68. The value of Δ^2O^5 is :
    a) 20 b) 10 c) 30 d) 5

    Thanks.


    PS:- Since I didn't know the topics these questions belonged to, I posted it here. Sorry if its the wrong place.
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  2. #2
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    Quote Originally Posted by Nikhar View Post
    Which topics(in mathematics) are the following questions from?
    Ok...we have this entrance exam which asked the following questions previous year. I don't even know which topics do these belong to.
    Please tell me the following questions come under which category.
    3. The value of (E 1) is (where E is shift operator)
    a) E 1 Δ b) E 1 ▽ c) E 1 δ d) None of these

    29. In LPP ΔJ for all basic variables is equal to :
    a) 1 b) 1 c) 0 d) None

    37. If f (x) = 1/(x^2)
    , then the value of divided difference f (a, b) is :


    The value of Δ^10( 1-ax)(1-bx^2 )(1-cx^3 )(1-dx^4 )
    is :

    48. If U0 = 580, U1 = 556, U2 = 520 and U4 = 385, then the value of U3 is :
    a) 400 b) 413 c) 465 d) 460

    65. If U0 = 3, U1 = 12, U2 = 81, U3 = 200, U4 = 100 and U5 = 8, then the value of D 5U0
    is:
    a)700 b) 755 c) 756 d) None

    68. The value of Δ^2O^5 is :
    a) 20 b) 10 c) 30 d) 5

    Thanks.


    PS:- Since I didn't know the topics these questions belonged to, I posted it here. Sorry if its the wrong place.
    I suggest you ask whoever set the entrance exam that these questions were on.
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  3. #3
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    Quote Originally Posted by mr fantastic View Post
    I suggest you ask whoever set the entrance exam that these questions were on.
    Believe me, I would have if I could have. I even googled the stuff for about an hour and a half but to no avail.
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  4. #4
    Grand Panjandrum
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    Quote Originally Posted by Nikhar View Post
    Which topics(in mathematics) are the following questions from?
    Ok...we have this entrance exam which asked the following questions previous year. I don't even know which topics do these belong to.
    Please tell me the following questions come under which category.
    3. The value of (E 1) is (where E is shift operator)
    a) E 1 Δ b) E 1 ▽ c) E 1 δ d) None of these

    29. In LPP ΔJ for all basic variables is equal to :
    a) 1 b) 1 c) 0 d) None

    37. If f (x) = 1/(x^2)
    , then the value of divided difference f (a, b) is :


    The value of Δ^10( 1-ax)(1-bx^2 )(1-cx^3 )(1-dx^4 )
    is :

    48. If U0 = 580, U1 = 556, U2 = 520 and U4 = 385, then the value of U3 is :
    a) 400 b) 413 c) 465 d) 460

    65. If U0 = 3, U1 = 12, U2 = 81, U3 = 200, U4 = 100 and U5 = 8, then the value of D 5U0
    is:
    a)700 b) 755 c) 756 d) None

    68. The value of Δ^2O^5 is :
    a) 20 b) 10 c) 30 d) 5

    Thanks.


    PS:- Since I didn't know the topics these questions belonged to, I posted it here. Sorry if its the wrong place.
    Looks like discrete or numerical analysis to me but without more context it is difficult to be precise.

    LPP :- Linear Programming Problem

    \Delta :- forward difference operator

    \nabla :- backward difference operator

    \delta :- central difference operator

    D :- divided difference operator? (discrete analogue of derivative)
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  5. #5
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    Quote Originally Posted by CaptainBlack View Post
    Looks like discrete or numerical analysis to me but without more context it is difficult to be precise.

    LPP :- Linear programming Problem

    \Delta :- forward difference operator

    \nabla :- backward difference operator

    \delta :- central difference operator
    Thanks a lot.

    And about more context, well, I've posted the question as it was in the question paper.

    But still, thanks a ton.
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