INVERSE TRIG FUNCTIONS Evaluating (Page 6 of 10)

This same problem can be performed using the reciprocal key if desired, which eliminates the need to enter a fraction. Enter the value followed by the x to the -1 key. key.

 2nd inverse sine key. 3.8637 x to the -1 key. Right parenthesis key. ENTER key. Calculator screen image.

Now evaluate arccot(-1.7118) and display the results in DMS format. Remember to use the inverse of the reciprocal function with the reciprocal of the value.

 CLEAR key.

 2nd inverse tangent key. Negation key. 1.7118 x to the -1 key. Right parenthesis key. 2nd ANGLE key. 4: menu selection. ENTER key.

 Calculator screen image.
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