यदि \(x-\frac{1}{x}\) = \(\frac{15}{4}\) है, तो \(x+\frac{1}{x}\) का मान ज्ञात कीजिए। 

1
\(\frac{15}{4}\)
2
\(\frac{21}{4}\)
3
\(\frac{13}{4}\)
4
\(\frac{17}{4}\)

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