Compound Angles
Easymathematics
The formula for sin(A + B) is
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Solution
Incorrect! Answer:
sin A cos B + cos A sin B
- Addition Theorem: The sine of a sum can be expressed in terms of the sines and cosines of the individual angles.
- Result: sin(A+B)=sinAcosB+cosAsinB.
- Mnemonic: Sine 'shares' the terms (s⋅c+c⋅s) and keeps the sign (+ stays +).
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About This Question
- Subject
- mathematics
- Chapter
- trigonometry
- Topic
- compound angles
- Difficulty
- Easy
- Year
- 2025
This easy difficulty mathematics question is from the chapter trigonometry, covering the topic of compound angles. It appeared in the 2025 exam. Practice this and similar questions to strengthen your understanding of trigonometry concepts.
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