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Find the radius of convergence and the interval of convergence of the power series.
Times Interest Earned Ratio
A financial metric that measures a company's ability to meet its debt obligations based on its current income.
Depreciation Expense
The systematic allocation of the cost of a tangible asset over its useful life, reflecting the loss in value as it ages, used for accounting and tax purposes.
Cash Coverage Ratio
A financial metric that measures a company's ability to pay off its debt obligations with its operating cash flow. It is an important indicator of financial health.
Debt-Equity Ratio
A marker indicating the relative financing tactics of using debt and equity in company assets.
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