यदि A + \(\frac{1}{1+\frac{1}{2+\frac{1}{3}}}=\frac{9}{10}\) है, तो A का मान क्या है?

1
\(\frac{1}{5}\)
2
\(\frac{3}{10}\)
3
\(\frac{2}{5}\)
4
\(\frac{1}{10}\)

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