જો $\sin^2 \theta = \frac{x^2 + y^2 + 1}{2x}$ હોય,તો $x$ શું હોવું જોઈએ?

  • A
    $-3$
  • B
    $-2$
  • C
    $1$
  • D
    આમાંથી કોઈ નહીં

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ધારો કે $f(\theta) = (1 + \sin^2 \theta)(2 - \sin^2 \theta)$. તો, $\theta$ ની તમામ કિંમતો માટે:

જો $A+B+C=\frac{\pi}{3}$ હોય,તો $\sin \left(\frac{\pi-6A}{6}\right)+\sin \left(\frac{\pi-6B}{6}\right)+\sin C=$

જો $A + B + C = \pi$ અને $\sin \left( A + \frac{C}{2} \right) = k \sin \frac{C}{2}$ હોય,તો $\tan \frac{A}{2} \tan \frac{B}{2} = $

જો $A + B + C = 180^{\circ}$ હોય,તો $\tan A + \tan B + \tan C = $

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જો $A, B, C$ એ $\triangle ABC$ ના ખૂણા હોય,તો $\cot A \cot B + \cot B \cot C + \cot A \cot C = $

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