\[ y=e^{x}(a \cos x+b \sin x) \] में, स्वेच्छ अचरों \( a \) तथा \( b \) को विलुप्त करते हुए दिए ...

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\[
y=e^{x}(a \cos x+b \sin x)
\]
में, स्वेच्छ अचरों \( a \) तथा \( b \) को विलुप्त करते हुए दिए हुए वक्रों के कुल को निरूपित करने वाला अवकल समीकरण ज्ञात कीजिए।
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