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In the matrix A=[(2,5,19,-7),(35,-2,(5)/...

In the matrix `A=[(2,5,19,-7),(35,-2,(5)/(2),12),(sqrt(3),1,-5,17)]`, write:
(i) The order of the matrix,
(ii) The number of elements,
(iii) Write the elements `a_(13), a_(21), a_(33), a_(24), a_(23)`.

Text Solution

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The correct Answer is:
`(i) 3xx4 (ii) 12 (iii) 19,35, -5,12, (5)/(2)`
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Knowledge Check

  • The number of all three element subsets of set {a_(1),a_(2),a_(3),.......,a_(n)} which contain a_(3) is

    A
    `""^(n)C_(3)`
    B
    `""^(n+1)C_(3)`
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  • a_(n) = 2^(n), a_(5) = ………

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    32
    B
    23
    C
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    D
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  • If a_(1), a_(2)…….,a_(n) are in H.P., then the expression a_(1)a_(2) + a_(2)a_(3) + ……. + a_(n-1) a_(n) =

    A
    `na_(1)a_(n)`
    B
    `(n -1) a_(1)a_(n)`
    C
    `n(a_(1) - a_(n))`
    D
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