Texas Instruments TI-84 PLUS SILV Guidebook - Page 305
Displaying Complex Results, Activities
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2. Press Í to convert the result to a decimal. To save keystrokes, you can scroll up to find an expression you entered, copy it, and then edit it for a new calculation. 3. Press } to highlight and then press Í to paste it to the entry line. 4. Press | until the cursor is on the + sign in the formula. Press ¹ to edit the quadratic-formula expression to become . 5. Press Í to find the other solution for the quadratic equation 2x2 N 11x + 14 = 0. Displaying Complex Results Now solve the equation 2x2 N 6x + 5 = 0. When you set a+bi complex number mode, the TI-84 Plus displays complex results. 1. Press z 6 times), and then press ~ to highlight a+bi. Press Í to select a+bi complex-number mode. 2. Press y 5 to return to the home screen, and then press ' to clear it. Chapter 17: Activities 298