The elimination of arbitrary constants $c_{1}, c_{2}, c_{3}, c_{4}$ from $y=(c_{1}+c_{2})\sin(2x+c_{3}) + c_{4}e^{5x}$ gives a differential equation of order ________.
Show Hint
Combine dependent constants (like $c_1+c_2$) before counting.
Step 1: Concept
The order of the differential equation equals the number of independent arbitrary constants.
Step 2: Meaning
Identify independent constants. $(c_1 + c_2)$ is a single constant (say $K$).
Step 3: Analysis
The equation is $y = K\sin(2x + c_3) + c_4e^{5x}$. The constants are $K, c_3,$ and $c_4$.
Step 4: Conclusion
There are 3 independent constants, so the order is 3.
Final Answer: (C)