Teaching UP TGT Mock Test Series 2025 Mathematics Differential Equations Order and Degree of a Differential Equation
यदि y = sin (ln x) फिर निम्नलिखित में से कौन सा सही है?
1
\(\frac{{{d^2}y}}{{d{x^2}}} + y = 0\)
2
\(\frac{{{d^2}y}}{{d{x^2}}} = 0\)
3
\({x^2}\frac{{{d^2}y}}{{d{x^2}}} + x\frac{{dy}}{{dx}} + y = 0\)
4
\({x^2}\frac{{{d^2}y}}{{d{x^2}}} - x\frac{{dy}}{{dx}} + y = 0\)