$\text{यदि } \sin(\alpha+\beta)=1, \sin(\alpha-\beta)=\frac{1}{2}, \alpha, \beta \in [0, \frac{\pi}{2}], \text{ तो } \tan(\alpha+2\beta) \cdot \tan(2\alpha+\beta) = ?$

  • A
    $1$
  • B
    $-1$
  • C
    $0$
  • D
    $4$

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