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If y is a function of xa n dlog(x+y)-2x...

If `y` is a function of `xa n dlog(x+y)-2x y=0,` then the value of `y^(prime)(0)` is (a)1 (b) `-1` (c) 2 (d) 0

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If y is a function of x and ln(x+y)-2x y=0, then the value of y^(prime)(0) is equal to 1 (b) -1 (c) 2 (d) 0

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Knowledge Check

  • If (2)/(3) x = 0 . 6 and 0 . 0 2 y = 1 then the value of x + y^(-1) is

    A
    `0 . 92 `
    B
    ` 1. 1 `
    C
    `49 . 1 `
    D
    ` 50 . 9 `

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    A
    C
    B
    A
    C
    B
    D
    D

  • If (x_(0), y_(0), z_(0)) is any solution of the system of equations 2x-y-z=1, -x-y+2z=1 and x-2y+z=2 , then the value of (x_(0)^(2)-y_(0)^(2)+1)/(z_(0)) (where, z_(0) ne 0 ) is

    A
    1
    B
    2
    C
    3
    D
    4

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