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DAA_TI83CN_05 - CHAPTER 5 Calculator Notes for the TI-83...

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32 CHAPTER 5 Discovering Advanced Algebra Calculator Notes for the Texas Instruments TI-83 and TI-83 Plus ©2004 Key Curriculum Press Note 5A • Powers and Roots Powers The calculator has special keys for squaring, , and raising to a power of 1, (taking the reciprocal). The command for cubing is found under 3: 3 . You can find all powers, including these, by using the “caret” key, . If you raise a number to a fractional power, use parentheses around the exponent. Roots You can find the square root of a number by pressing [ ] . To find other roots, press . The cube root is 4: 3 ( and the x th root is 5: x . For example, to find the fourth root of 47 press 5: x . Note 5B • Drawing the Inverse of a Function Your calculator can draw the inverse of any function. From the Home screen press [DRAW] 8:DrawInv , followed by an expression containing X or one of the functions Y 1 through Y 0 . Then press (not ). A drawing is overlaid on top of the Graph screen; it cannot be traced. If you change the window or alter anything on the Y
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