Explanation

Explanation

The Maclaurin series expansion of cos(x) is derived from its Taylor series expansion around x = 0:

cos(x) = 1 - x²/2! + x⁴/4! - x⁶/6! + ...

This series alternates signs and involves even powers of x, with factorials in the denominators.

The answer is cosx = 1 - x²/2! + x⁴/4! - x⁶/6! + ...

Explanation

The cost-benefit approach evaluates whether the benefits of an action or investment outweigh the associated costs.

It is commonly used in accounting and economics for decision-making to ensure efficiency and value.

Explanation

The Accrual Principle records expenses when they are incurred, regardless of payment timing.

It ensures financial statements reflect true financial performance during a period.

Explanation

Explanation

Explanation

Explanation

Explanation

Explanation