x 4 + y 4 + x 2 y 2 = 27 ಮತ್ತು x 2 + y 2 - xy = 9 ಆಗಿದ್ದರೆ, \(\frac{x}{y}+\frac{y}{x}\) ನ ಮೌಲ್ಯ ಎಷ್ಟು ) ?

1
3
2
\(\frac{5}{4}\)
3
- 2
4
\(\frac{x}{y}+\frac{y}{x}\)

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