यदि y = \(\frac{{4x - 5}}{{x + 5}}\) है, तो \(\frac{{dy}}{{dx}}\) का मान क्या है?

1
\(\frac{{20}}{{{{\left( {x + 5} \right)}^2}}}\)
2
\(\frac{{25}}{{{{\left( {x + 5} \right)}^2}}}\)
3
\(\frac{{x + 5}}{{4x - 5}}\)
4
4

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