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For what value of x, the duplicate of (...

For what value of x, the duplicate of `(x+a)/(x +b)" is " a/b` ?

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The correct Answer is:
`x = pm sqrt(ab)`
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For what value of x, the duplicate ratio of (x + a)/(x + b) " is " a/b ?

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Knowledge Check

  • For what value of a and b, the two equationes 5x + 8y =7 and (a +b)x + (a -b)y =(2a + b + 1) have infinite no. of solutions

    A
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    B
    1 ,1
    C
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    D
    -13/9 ,1/3

  • The value of integral int(dx)/(sin(x-a)sin(x-b)) is -

    A
    `(1)/(sin(a-b))log|(sin(x-a))/(sin(x-b))|+c`
    B
    `(1)/(sin(b-a))log|(sin(x-a))/(sin(x-b))|+c`
    C
    `(1)/(sin(a-b))log|(sin(x-b))/(sin(x-a))|+c`
    D
    `(1)/(sin(b-a))log|(sin(x-b))/(sin(x-a))|+c`

  • If Y=((ax-b))/((x-4)(x-1)) has extreme value at (2,-1) then the value of (a+10b) must be

    A
    a)0
    B
    b)-1
    C
    c)-2
    D
    d)1

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