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Math Help - ap and gp

  1. #1
    Junior Member
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    ap and gp

    if the number a, b, c are in GP and AMs between a,b and b,c are in x and y respectively, then prove that (a/x) + (c/y) = 2
    my incomplete soln-
    b/a = c/b
    or, b^2 = ac
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  2. #2
    Senior Member abhishekkgp's Avatar
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    Quote Originally Posted by saha.subham View Post
    if the number a, b, c are in GP and AMs between a,b and b,c are in x and y respectively, then prove that (a/x) + (c/y) = 2
    my incomplete soln-
    b/a = c/b
    or, b^2 = ac
    also use x=(a+b)/2 and y=(b+c)/2
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