समीकरण $\sin ^{-1}\left(\sum_{i=1}^{\infty} x^{i+1}-x \sum_{i=1}^{\infty}\left(\frac{x}{2}\right)^i\right)=\frac{\pi}{2}-\cos ^{-1}\left(\sum_{i=1}^{\infty}\left(-\frac{x}{2}\right)^i-\sum_{i=1}^{\infty}(-x)^i\right)$ के अंतराल $\left(-\frac{1}{2}, \frac{1}{2}\right)$ में स्थित वास्तविक हलों की संख्या . . . . . है।

  • A
    $0$
  • B
    $1$
  • C
    $2$
  • D
    $3$

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