Teaching MPPSC Assistant Professor Mock Test Series 2025 Engineering Mathematics Transform Theory Laplace Transform
The solution of the differential equation \(f(t)\;+\;\ddot{f}(t)=0\) with initial conditions \(\dot{f}(0)=1\) and f(0) = 1, for t ≥ 0 is
1
-cos t + sin t
2
cos t - sin t
3
-cos t - sin t
4
cos t + sin t