∫Calc Practice

Derivative of \( \displaystyle \operatorname{asin}{\left(5 x - 1 \right)} \)

Problem 2.356 · easy

Differentiate \( \displaystyle f(x) = \operatorname{asin}{\left(5 x - 1 \right)} \).
  1. \[ \frac{d}{d x} \operatorname{asin}{\left(5 x - 1 \right)} \]
    derivativeStart with the derivative of the function.✓ Proved
  2. \[ = \frac{\frac{d}{d x} \left(5 x - 1\right)}{\sqrt{1 - \left(5 x - 1\right)^{2}}} \]
    chainApply the chain rule for the arcsine function.✓ Proved
  3. \[ = \frac{- \frac{d}{d x} 1 + \frac{d}{d x} 5 x}{\sqrt{1 - \left(5 x - 1\right)^{2}}} \]
    sumDifferentiate the inner linear function.✓ Proved
  4. \[ = \frac{5}{\sqrt{1 - \left(5 x - 1\right)^{2}}} \]
    derivative simplifyCompute the derivatives of 5*x and 1. Simplify the expression to the final result.✓ Proved
Answer \( \frac{5}{\sqrt{1 - \left(5 x - 1\right)^{2}}} \)

✓ 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
asin is real only on [-1, 1]
undefined where 1 - (5*x - 1)**2 = 0
3✓ Provedsympy 1.14.0simplify(a - b) reduced to 0
undefined where 1 - (5*x - 1)**2 = 0
4✓ Provedsympy 1.14.0simplify(a - b) reduced to 0
undefined where 1 - (5*x - 1)**2 = 0
5✓ Provedsympy 1.14.0simplify(a - b) reduced to 0
undefined where 1 - (5*x - 1)**2 = 0
answer✓ Provedsympy 1.14.0final line against the stated answer: simplify(a - b) reduced to 0
undefined where 1 - (5*x - 1)**2 = 0
answer, a second way✓ Provedsympy 1.14.0SymPy differentiated f directly and got the stated answer

Reviewers

  • gpt-oss:20b: pass
  • deepseek-r1:70b: fail (misleading) — The step labeled 'sum' might be misleading as it's differentiating a linear function rather than applying the sum rule.
  • qwen3.6:27b-mlx: pass
Every verdict on record (10)
  • qwen3.6:27b-mlx: pass 2026-09-20
  • gpt-oss:20b: pass 2026-09-20
  • qwen3.6:27b-mlx: pass 2026-09-20
  • gpt-oss:20b: pass 2026-09-20
  • qwen3.6:27b-mlx: pass 2026-09-19
  • deepseek-r1:70b: fail (misleading) 2026-09-19 — The step labeled 'sum' might be misleading as it's differentiating a linear function rather than applying the sum rule.
  • gpt-oss:20b: pass 2026-09-19
  • qwen3.6:27b-mlx: pass 2026-09-19
  • deepseek-r1:70b: pass 2026-09-19
  • gpt-oss:20b: pass 2026-09-19

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 2026-09-26 with SymPy 1.14.0.