Quantitative Aptitude Algebra Identities

ఒకవేళ  x + y = 7 మరియు x 2 + y 2 = 25 అయితే, \(\left(\frac{1}{x}+\frac{1}{y}\right) \) విలువ:

1
\(\frac{12}{7}\)
2
\(\frac{7}{25}\)
3
\(\frac{7}{12}\)
4
\(\frac{1}{10}\)

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