IDENTITIES Verifying Identities (Page 2 of 5)

Because the equation involves functions of real numbers, be sure the calculator is set to Radian mode.

 MODE key. [Radian] ENTER key. Calculator screen image.

Now set up the table. Let's have the table begin at -π and increment by π/12. Set TblStart to -π,  ΔTbl to π/12, and the independent variable setting to Auto. (It's okay if your initial settings do not match those shown in the animation.)

 2nd TBLSET key.

 Negation key. 2nd Pi key. ENTER key. 2nd Pi key. Divide key. 12 ENTER key. ENTER key.

 Calculator screen image.
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