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The Differential Equation formed by y = across + bsinx + 4, where a and b are arbitrary constant is?

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The Differential Equation formed by y = across + bsinx + 4, where a and b are arbitrary constant is? Answer: d²y/dx² + y = 4

Question context

This question is part of 📏 Arithmetic Aptitude within the broader 🧠 Aptitude Mastery subject and appears in the SPSC – Sindh Public Service Commission preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.