Examples: Fe, Au, Co, Br, C, O, N, F. Compare: Co - cobalt and CO - carbon monoxide; To enter an electron into a chemical equation use {-} or e If you are familiar with graphing algebraic equations, then you are familiar with the concepts of the horizontal X-Axis and the Vertical Y-Axis. (This system of graphing is known as Cartesian coordinates, named after the French mathematician René Descartes (1596-1650) who devised the system). Solve all type of trigonometric (sin, cos, tan, sec, scs, cot) expressions, equations, inequalities. The answer will appear below; Always use the upper case for the first character in the element name and the lower case for the second character. Alternator and Synchronous Generator Formulas & Equations. Systems - solve for x and y. solve by adding solve by subtracting a mix of the above two require one multiplication step general system solve by substitution Viewed 1k times 0. He wants to list several formulas as question answer options. 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