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Integral of \( \displaystyle e^{2 x} \sin{\left(e^{2 x} \right)} \)

Problem 4.740 · medium

Find \( \displaystyle \int e^{2 x} \sin{\left(e^{2 x} \right)} \, dx \). (Omit the constant of integration.)
  1. \[ \int e^{2 x} \sin{\left(e^{2 x} \right)}\, dx \]
    integral algebra algebra rewriteStart with the integral of the given function. Multiply and divide by 2 to prepare for substitution. Distribute the constant. Recognize the derivative of the inner function.✓ Proved
  2. \[ = \frac{\int 2 e^{2 x} \sin{\left(e^{2 x} \right)}\, dx}{2} \]
    linearityPull the constant out of the integral.✓ Proved
  3. \[ = - \frac{\cos{\left(e^{2 x} \right)}}{2} \]
    antiderivativeIntegrate the remaining expression using the substitution rule.✓ Proved
Answer \( - \frac{\cos{\left(e^{2 x} \right)}}{2} + C \)

✓ 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
3✓ Provedsympy 1.14.0simplify(a - b) reduced to 0
4✓ Provedsympy 1.14.0simplify(a - b) reduced to 0
5✓ Provedsympy 1.14.0simplify(a - b) reduced to 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 2026-10-09
  • qwen3.6:27b-mlx: pass 2026-10-09
  • gpt-oss:20b: pass 2026-10-09
  • qwen3.6:27b-mlx: pass 2026-10-09 — The solution correctly applies substitution via algebraic manipulation and linearity. Each step changes only one aspect of the expression and uses valid labels from the fixed vocabulary.

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 2026-10-09 with SymPy 1.14.0.