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- Concept Video2:09Introduction to Trigonometry0. Review of College Algebra / Rationalizing Denominators
- Concept2:58Rationalizing Denominators0. Review of College Algebra / Rationalizing Denominators
Practice problemRationalize the denominator.
0. Review of College Algebra / Rationalizing Denominators
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- 11videos inTopic32 minutesGraphs of the Sine and Cosine Functions4. Graphing Trigonometric Functions
- 18videos inTopic28 minutesInverse Sine, Cosine, & Tangent5. Inverse Trigonometric Functions and Basic Trigonometric Equations
- 21videos inTopic1 minutesIntroduction to Trigonometric Identities6. Trigonometric Identities and More Equations
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- RN@RobertUpdate 2 weeks ago
Hi there! We covered reciprocal trig function earlier here.
We saw that . For the square, you may need to use more reasoning.
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- CC@CC_3645915Update 2 weeks ago
When were we supposed to have learned that 1 over sin squared theta was equal to csc squared theta?
0up votes•1replies - RN@RobertUpdate 3 weeks ago
Hi there! You're correct. If we count continuously in a CCW direction we'll get 3pi/2.
Note that trigonometry ratios tends to count 180 degrees CCW and 180 degrees CW. This is why we say inverse sine is defined from -pi/2 to pi/2.
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