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Not your average video:
Interactive Problems: Solve problems alongside the video with step-by-step guidance and detailed solutions.
Exam Preparation: Complete unit reviews designed for final exam preparation with all key concepts covered systematically.
Expert Teaching: High-quality instruction from Perplex co-founder James Mullen with clear explanations, worked examples, and exam tips.
Trig equations & identities
Watch comprehensive video reviews for Trig equations & identities, designed for final exam preparation. Each video includes integrated problems you can solve alongside detailed solutions.
Not your average video:
Interactive Problems: Solve problems alongside the video with step-by-step guidance and detailed solutions.
Exam Preparation: Complete unit reviews designed for final exam preparation with all key concepts covered systematically.
Expert Teaching: High-quality instruction from Perplex co-founder James Mullen with clear explanations, worked examples, and exam tips.
Not your average video:
Interactive Problems: Solve problems alongside the video with step-by-step guidance and detailed solutions.
Exam Preparation: Complete unit reviews designed for final exam preparation with all key concepts covered systematically.
Expert Teaching: High-quality instruction from Perplex co-founder James Mullen with clear explanations, worked examples, and exam tips.
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SL 3.8
The domain of a trigonometric equation determines the range of possible solutions. The most common domain is 0≤θ<2π (0°≤θ<360°) but in general domains can be arbitrary.
Other times, the arguments of the trigonometric equation might not simply be θ, but aθ+b. For example:
If we let x=2θ−2π, then the equation becomes
The new bounds are found by
The solutions of sinx=1 are, in general, x=2π+2kπ.
Listing out the first few solutions (for positive and negative k∈Z), we find the valid solutions:
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SL 3.8
The domain of a trigonometric equation determines the range of possible solutions. The most common domain is 0≤θ<2π (0°≤θ<360°) but in general domains can be arbitrary.
Other times, the arguments of the trigonometric equation might not simply be θ, but aθ+b. For example:
If we let x=2θ−2π, then the equation becomes
The new bounds are found by
The solutions of sinx=1 are, in general, x=2π+2kπ.
Listing out the first few solutions (for positive and negative k∈Z), we find the valid solutions:
Powered by Desmos