TRIGONOMETRIC FUNCTIONS Evaluating (Page 14 of 15)

Finally, let's use the table to evaluate the function Y1 for x-values spaced π/4 radians apart, starting with x = -π. Return to the table setup screen. TblStart is the value of x that you would like the table to begin with, and ΔTbl is the spacing between x-values. We also must change the independent variable setting to Auto.

2nd TBLSET key.

Negation key. 2nd Pi key. ENTER key. 2nd Pi key. Divide key. 4 key. ENTER key. ENTER key.

 Calculator screen image.

Return to the table, and the TI-83/84 will evaluate the function Y1 for each x-value automatically.

2nd TABLE key. Calculator screen image.
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