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एक प्रणाली, डिफरेंस समीकरण y(n) = 1.8y(n - 1) - 0.72y (n - 2) + x (n) + 0.5x (n - 1) से परिभाषित है, तो वह प्रणाली होगी

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  1. स्थिर
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Option 2 : अस्थिर
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