4/7/2024 0 Comments Trig identities cheat sheetMary Jane Sterling aught algebra, business calculus, geometry, and finite mathematics at Bradley University in Peoria, Illinois for more than 30 years. The always-true, never-changing trig identities are grouped by subject in the following lists. And you use trig identities as constants throughout an equation to help you solve problems. Of course you use trigonometry, commonly called trig, in pre-calculus. Never fear, the following formulas show you how to deal with absolute values in pre-calculus. The following formulas show how to format solution sets in interval notation. In pre-calculus you deal with inequalities and you use interval notation to express the solution set to an inequality. The theorem and how it applies to special right triangles are set out here. The figure here shows all the measurements of the unit circle. You discover new ways to record solutions with interval notation, and you plug trig identities into your equations. Pre-calculus involves graphing, dealing with angles and geometric shapes such as circles and triangles, and finding absolute values.
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