A regular polygon is defined as a polygon where all sides and angles are equal, making option 2 the correct description.

The Pythagorean theorem establishes a relationship between the lengths of the sides of a right triangle, specifically stating that the square of the hypotenuse is equal to the sum of the squares of the other two sides.

The slope of a linear function indicates the rate of change of the function with respect to x.

The author employs statistical data to substantiate claims about the prevalence and impact of inequalities.

The author expresses a supportive and optimistic view of digital sum, showcasing its benefits and potential.

The author presents digital sum in an enthusiastic manner, providing informative insights into its significance.

The author uses examples to illustrate the complexity of inequalities, making the argument more relatable and understandable.

The Binomial Theorem provides a formula for expanding expressions of the form (a + b)^n.

A joint venture is a temporary partnership formed for a specific project or purpose.

Since the leading coefficient is negative and the degree is even, both ends of the graph will go to negative infinity.

A tangent line is defined as a line that touches the circle at exactly one point and is perpendicular to the radius at that point.

An algorithm is defined as a step-by-step procedure for calculations, widely used in mathematics and computer science.

An algorithm is defined as a step-by-step procedure for calculations, which is essential in both mathematics and computer science.

A joint venture is a temporary partnership formed for a specific project or goal, distinct from a permanent partnership.

A limited partner contributes capital but does not participate in the management of the business, thus limiting their liability.

A limited partner contributes capital but does not participate in the management of the business.

A limited partnership consists of at least one general partner who has unlimited liability and one or more limited partners who have limited liability.

Partnership by estoppel occurs when a person represents themselves as a partner, leading others to believe they are part of the partnership, thus creating legal recognition.

A partnership deed is a legal document that outlines the terms and conditions of the partnership, including roles, responsibilities, and profit-sharing.

The profit-sharing ratio refers to the ratio in which partners agree to share the profits of the partnership.

A silent partner invests capital but does not engage in the daily operations of the business.

A silent partner is one who invests in the business but does not take part in its management.

The author critically examines the factors contributing to inequalities, indicating a critical tone.

The author maintains an optimistic tone, suggesting that with the right measures, social inequalities can be addressed effectively.

The tone is critical and analytical, as the author examines the complexities of inequality rather than presenting a simplistic view.

The Fibonacci sequence is significant because it appears in various natural phenomena and patterns, illustrating the connection between mathematics and nature.

Infinity is often described as a limit that can never be reached, representing an unbounded quantity in mathematics.

Mathematical induction is a method of proof that involves proving a base case and then showing that if the statement holds for an arbitrary case n, it holds for n+1.

The conclusion emphasizes that digital sum is fundamental and has numerous applications across various domains.

The conclusion of the passage asserts that digital sum continues to be a fundamental concept in the field of technology.