यदि $\tan \alpha$ और $\tan \beta$ समीकरण $x^2 + px + q = 0$ $(p \ne 0)$ के मूल हैं,तो:

  • A
    $\sin^2(\alpha + \beta) + p\sin(\alpha + \beta)\cos(\alpha + \beta) + q\cos^2(\alpha + \beta) = q$
  • B
    $\tan(\alpha + \beta) = \frac{p}{q - 1}$
  • C
    $\sin(\alpha + \beta) = -p$
  • D
    $(a)$ और $(b)$ दोनों

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