INVERSE TRIG FUNCTIONS Basic Graphs (Page 5 of 13)

Set the WINDOW so that -2.35 <= x <= 2.35 (click here for an explanation of using these settings) with Xscl = 1 and -2 <= y <= 2 with Yscl = π/2. (Although the ZOOM ZTrig command could be used, it does not give optimal windows for the inverse trigonometric functions.)

 WINDOW key.

 Negation key. 2.35 ENTER key. 2.35 ENTER key. 1 ENTER key. Negation key. 2 ENTER key.
 2 ENTER key. 2nd Pi key. Divide key. 2 ENTER key.

 Calculator screen image.

Graph the function. Observe that the domain is [-1, 1] and the range is [-π/2, π/2].

 GRAPH key. Calculator screen image.
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