1/f=1/a+1/b - solution

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Solution for 1/f=1/a+1/b equation:

x in (-oo:+oo)

1/f = 1/a+1/b // - 1/a+1/b

1/f-(1/a)-(1/b) = 0

1/f-a^-1-b^-1 = 0

f^-1-a^-1-b^-1 = 0

x naleu017Cy do R

x in (-oo:+oo)

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