Title: Trigonometry - General Addition Formulas - DragWords - v2

Authors: Justine Leon Uro (Author)
Licence: CC BY 4.0

TRIGONOMETRY: GENERAL ADDITION FORMULAS

Instruction: For each item, drag the number or mathematical expression given on the right side of the display (or below) into the correct box so that an identity is formed.

Q: 1. \(\sin(\alpha\) [...] \(\beta)\) = \(\sin\alpha\cos\beta\) \(+\) \(\sin\beta\cos\alpha\)

2. \(\sin(\alpha - \beta)\) = \(\sin\alpha\cos\beta \;-\;\) [...]

3. \(\cos(\alpha + \beta)\) = \(\cos\alpha\cos\beta \;-\;\) [...]

4. \(\cos(\alpha\) [...] \(\beta)\) = \(\cos\alpha\cos\beta \;+\;\) \(\sin\alpha\sin\beta\)

5. \(\tan(\)[...] \(\;+\; \beta\)) = \(\displaystyle\frac{\tan\alpha + \tan\beta}{1 - \tan\alpha\tan\beta}\)

6. \(\tan(\alpha \;-\; \beta)\) = \((\tan\alpha - \tan\beta)\) [...] \((1 + \tan\alpha\tan\beta)\)

---oOo---oOo---oOo---oOo---oOo---oOo---oOo---oOo---
A: \(+\); \(\sin\beta\cos\alpha\); \(\sin\alpha\sin\beta\); \(-\); \(\alpha\); \(\div\)
Also offered: \(+\); \(\times\); \(\div\); \(1\); \(\tan\alpha\); \(\csc\beta\); \(\sec\beta\); \(\cos\alpha\cos\beta\); \(\sin\alpha\sin\beta\)
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