CUET and UG exam CUET UG 2025 Mock Test Series Mathematics Differential Equations Formation of a Differential Equation
यदि y = p sin3x + q cos 3x है, तो फलन के लिए कौन-सा सही है?
1
\(\rm {d^2y\over dx^2} +3y=0\)
2
\(\rm {d^2y\over dx^2} -3y=0\)
3
\(\rm {d^2y\over dx^2} +9y=0\)
4
\(\rm {d^2y\over dx^2} -9y=0\)