For each given scenario, address the following: $1.$ Determine whether it represents a temporary or permanent tax difference. $2.$ Explain whether it will lead to future taxable or deductible amounts. $3.$ Identify whether it results in a deferred tax asset $($DTA$)$ or deferred tax liability $($DTL$)$ Scenario $1$:

A company expenses estimated warranty costs $($covering a three$-$year period$)$ when incurred for accounting purposes.

Scenario $2$:

A company has different depreciation bases for accounting and tax purposes due to a business combination. The combination is treated as a purchase for accounting purposes but as a tax$-$free exchange for income tax purposes.

Scenario $3$:

A company accounts for a $\backslash (30\backslash \%\backslash )$ equity investment using the equity method. The investee pays dividends equal to $\backslash (10\backslash \%\backslash )$ of its annual earnings.