If , find the values of the five other trigonometric functions. Rationalize the denominators if necessary.
Table of contents
- 0. Functions4h 53m
- 1. Limits and Continuity2h 2m
- 2. Intro to Derivatives1h 33m
- 3. Techniques of Differentiation2h 18m
- 4. Derivatives of Exponential & Logarithmic Functions1h 16m
- 5. Applications of Derivatives2h 19m
- 6. Graphical Applications of Derivatives6h 0m
- 7. Antiderivatives & Indefinite Integrals48m
- 8. Definite Integrals4h 36m
- 9. Graphical Applications of Integrals1h 43m
- 10. Integrals of Inverse, Exponential, & Logarithmic Functions21m
- 11. Techniques of Integration2h 7m
- 12. Trigonometric Functions6h 54m
- Angles29m
- Trigonometric Functions on Right Triangles1h 8m
- Solving Right Triangles23m
- Trigonometric Functions on the Unit Circle1h 19m
- Graphs of Sine & Cosine46m
- Graphs of Other Trigonometric Functions32m
- Trigonometric Identities52m
- Derivatives of Trig Functions42m
- Integrals of Basic Trig Functions28m
- Integrals of Other Trig Functions10m
- 13: Intro to Differential Equations2h 23m
- 14. Sequences & Series2h 8m
- 15. Power Series2h 19m
- 16. Probability & Calculus45m
12. Trigonometric Functions
Trigonometric Functions on Right Triangles
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Given the triangle below, determine the missing side(s) without using the Pythagorean theorem (make sure your answer is fully simplified).

A
x=81
B
x=92
C
x=29
D
x=162

1
Step 1: Recognize that the triangle is a 45°-45°-90° triangle. In this type of triangle, the legs are congruent, and the hypotenuse is √2 times the length of a leg.
Step 2: Identify the given information. Both legs of the triangle are equal to 9 units, and the hypotenuse is labeled as x.
Step 3: Use the property of 45°-45°-90° triangles to express the hypotenuse. The formula for the hypotenuse is: hypotenuse = leg × √2.
Step 4: Substitute the length of the leg (9) into the formula: x = 9 × √2.
Step 5: Simplify the expression for the hypotenuse. The hypotenuse is x = 9√2.
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Multiple Choice
Trigonometric Functions on Right Triangles practice set
