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Solving trigonometric equations using sum and difference identities
- Lesson: 1a15:45
- Lesson: 1b13:10
Solving trigonometric equations using sum and difference identities
Basic Concepts: Reference angle, Find the exact value of trigonometric ratios, ASTC rule in trigonometry (All Students Take Calculus), Sum and difference identities
Related Concepts: Sine graph: y = sin x, Cosine graph: y = cos x, Derivative of trigonometric functions
Lessons
- 1.Utilizing "Sum and Difference Identities" to solve:a)sin(x+4π)+sin(x−4π)=−1,general solution in degreesb)cos3xcosx+sin3xsinx=0, 0≤x < 2π
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17.
Solving Trigonometric Equations
17.1
Solving first degree trigonometric equations
17.2
Determining non-permissible values for trig expressions
17.3
Solving second degree trigonometric equations
17.4
Solving trigonometric equations involving multiple angles
17.5
Solving trigonometric equations using pythagorean identities
17.6
Solving trigonometric equations using sum and difference identities
17.7
Solving trigonometric equations using double-angle identities
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Practice topics for Solving Trigonometric Equations
17.1
Solving first degree trigonometric equations
17.2
Determining non-permissible values for trig expressions
17.3
Solving second degree trigonometric equations
17.4
Solving trigonometric equations involving multiple angles
17.5
Solving trigonometric equations using pythagorean identities
17.6
Solving trigonometric equations using sum and difference identities
17.7
Solving trigonometric equations using double-angle identities