Solve dy/dx = 6x with y(0) = 3. What is y(3)?
Answer and explanation
Correct answer: D.
- Step 1: Integrate: y = 3x² + C, and y(0) = 3 gives C = 3. Step 2. y(3) = 30. **Answer: . Why not the others:** is what you get if you integrate x as x² instead of x²/2. is what you get if you forget to integrate. is what you get if you get the sign of the constant wrong.
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