## Evaluating Trig Functions with a Calculator

Calculator Use This calculator will find the inverse trigonometric values for principal values in the ranges listed in the table. You can view the ranges in the Inverse Trigonometric Function Graphs . Inverse Trig Function Ranges

## Evaluate Trigonometric Functions

Free trigonometric identity calculator - verify trigonometric identities step-by-step. Solutions Graphing Practice; New Geometry Identities Proving Identities Trig Equations Trig

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## Evaluating Trigonometric Functions Without a Calculator

The values of trigonometric ratios turn out as follows. sin 90°= 0, cos 0° = 1, tan 0° = 0, sec 0° = 1, sin 90° = 1, cos 90° = 0, cot 90° = 0, sec 90° = 1. Other trigonometric ratios of 0°

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