Determine Whether the Set Is fiNite or Infinite $$\left\{ x \mid x \in \mathbf { N } \text { and } 9 x ^ { 2 } - 1 = 0 \right\}$$

question 151

Short Answer

determine whether the set is finite or infinite. If the set is finite, find its size.
- $$\left\{ x \mid x \in \mathbf { N } \text { and } 9 x ^ { 2 } - 1 = 0 \right\}$$

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Definitions:

Qualified Pension Plan

A retirement plan that meets requirements set forth by the IRS, providing tax advantages such as tax-deferred growth on earnings and deductible contributions.

Employer-sponsored Retirement Plan

A retirement savings plan offered by employers to their employees, often with matching contributions.

AGI

Adjusted Gross Income, which is gross income minus adjustments to income, serving as the basis for calculating taxable income.

Deductible Contribution

A contribution, typically to a retirement account, that can be subtracted from gross income to reduce taxable income.