Evaluate for Cosine Inverse Using the Unit Circle

Описание: 👉 Learn how to evaluate the inverse of reciprocal trigonometric functions. Recall that the reciprocal trigonometric functions are given by the ratio of 1 and the corresponding trigonometric function. When an angle is unknown but the value of one of the reciprocal trigonometric functions of the angle is known, we can evaluate the value of the angle by first converting the given reciprocal trigonometric function to the corresponding trigonometric function and then using the inverse trigonometric function of the obtained trigonometric function.

For instance, if we know that sec x = a/b where x is unknown and a, b are known, then we an evaluate x by first expressing sec x = 1 / cos x = a/b, this means that cos x = b/a and thus x = arccos (b/a).

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Organized Videos:
✅ Evaluate Inverse Trigonometric Functions
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✅ Evaluate Inverse Trigonometric Functions with a calculator
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✅ Evaluate Inverse Trigonometric Functions given a Triangle
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✅ How to Evaluate Inverse Trig Functions without a calculator
   • How to Evaluate Inverse Trig Functions wit...  
✅ Evaluate a Composition of Inverse Trigonometric Functions
   • Evaluate a Composition of Inverse Trigonom...  
✅ Solve Word Problems in Trigonometry
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