Trigonometry - Compound and Double-Angle Identities

Trigonometry - Compound and Double-Angle Identities

The value of \(\sin{\alpha}=\frac{3}{7}\) for \(0 \leq \alpha \leq \frac{\pi}{2}\). Find:

  1. \(\cos{\alpha}\)
  2. \(\sin{2\alpha}\)
  3. \(\cos{2\alpha}\)
  4. \(\tan{2\alpha}\)

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