∫Calc Practice

Integral of \( \displaystyle 2 \sqrt{2} x^{\frac{3}{2}} - \frac{\sqrt{2}}{2 \sqrt{x}} \)

Problem 4.477 · hard

Find \( \displaystyle \int 2 \sqrt{2} x^{\frac{3}{2}} - \frac{\sqrt{2}}{2 \sqrt{x}} \, dx \). (Omit the constant of integration.)
  1. \[ \int \left(2 \sqrt{2} x^{\frac{3}{2}} - \frac{\sqrt{2}}{2 \sqrt{x}}\right)\, dx \]
    integralStart with the integral of the given expression.✓ Proved
  2. \[ = - \int \frac{\sqrt{2}}{2 \sqrt{x}}\, dx + \int 2 \sqrt{2} x^{\frac{3}{2}}\, dx \]
    linearity rewriteSplit the integral into two parts. Rewrite the second term using a fractional exponent.✓ Proved
  3. \[ = - \frac{\sqrt{2} \int \frac{1}{\sqrt{x}}\, dx}{2} + 2 \sqrt{2} \int x^{\frac{3}{2}}\, dx \]
    linearityPull out the constant coefficients.✓ Proved
  4. \[ = \frac{4 \sqrt{2} x^{\frac{5}{2}}}{5} - \sqrt{2} \sqrt{x} \]
    antiderivative simplifyApply the power rule for integration. Simplify the coefficients.✓ Proved
Answer \( \frac{\sqrt{2} \sqrt{x} \left(4 x^{2} - 5\right)}{5} + C \)

✓ Nihil obstat Every line of this solution was proved by the computer algebra system SymPy. The answer was also checked a second way, without looking at the solution. Reviewers found nothing wrong with the explanation.

The full receipt
LineStatusChecked byDetail
1✓ Provedsympy 1.14.0line 1 is the problem as stated
2✓ Provedsympy 1.14.0simplify(a - b) reduced to 0
undefined where x = 0
3✓ Provedsympy 1.14.0simplify(a - b) reduced to 0
undefined where x = 0
4✓ Provedsympy 1.14.0simplify(a - b) reduced to 0
undefined where x = 0
5✓ Provedsympy 1.14.0simplify(a - b) reduced to 0
undefined where x = 0
6✓ Provedsympy 1.14.0simplify(a - b) reduced to 0
answer✓ Provedsympy 1.14.0final line against the stated answer: simplify(a - b) reduced to 0
answer, a second way✓ Provedsympy 1.14.0SymPy differentiated the stated antiderivative back to the integrand

Reviewers

  • gpt-oss:20b: pass
  • qwen3.6:27b-mlx: pass
Every verdict on record (4)
  • gpt-oss:20b: pass 2026-10-06
  • qwen3.6:27b-mlx: pass 2026-10-06
  • gpt-oss:20b: pass 2026-10-06
  • qwen3.6:27b-mlx: pass 2026-10-06 — The solution correctly applies linearity, rewrite, and antiderivative rules in separate steps. The final simplification is algebraically correct and matches the stated answer.

Proved: SymPy reduced the difference between the two sides to zero. Checked independently: a separate method, named above, confirmed it. Checked numerically: the two sides agree at every sampled point, which is evidence, not proof. Reviewed: a model or a person read it; that is all a sentence can have. Solution by gemma4:26b, checked 2026-10-06 with SymPy 1.14.0.