Solve dy/dx = 5x with y(0) = 2. What is y(3)?
Answer and explanation
Correct answer: B.
- Step 1: Integrate: y = 5/2x² + C, and y(0) = 2 gives C = 2. Step 2. y(3) = 49/2. **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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