What is the degree of the differential equation (d²y/dx²)^3 + dy/dx = 0? (Level 6 practice)

B. 3

Step 1: Degree is the power of the highest order derivative. Step 2: The highest derivative is d²y/dx² and its power is 3, so the degree is 3. Step 3: Check degree only when the equation is polynomial in derivatives.

Step 1: Degree highest order derivative की power होती है। Step 2: Highest derivative d²y/dx² है और इसकी power 3 है, इसलिए degree 3। Step 3: Degree तभी देखें जब equation derivatives में polynomial form में हो।