જો $x \cos \theta + y \sin \theta = 5$ અને $x \sin \theta - y \cos \theta = 3$ હોય,તો $x^{2} + y^{2}$ ની કિંમત શોધો.

  • A
    $17$
  • B
    $8$
  • C
    $12$
  • D
    $34$

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Similar Questions

જો $(\sec A + \tan A)(\sec B + \tan B)(\sec C + \tan C) = (\sec A - \tan A)(\sec B - \tan B)(\sec C - \tan C)$ હોય,તો દરેક બાજુનું મૂલ્ય શું થાય?

$\cos 2(\theta + \phi) - 4\cos (\theta + \phi)\sin \theta \sin \phi + 2\sin^2 \phi = $

જો $\sin 3\alpha = 4 \sin \alpha \cdot \sin(x + \alpha) \cdot \sin(x - \alpha)$ જ્યાં $\alpha \neq n\pi, n \in Z$, તો $x$ ના તમામ શક્ય મૂલ્યો છે

$\tan \frac{\pi}{5}+2 \tan \frac{2 \pi}{5}+4 \cot \frac{4 \pi}{5}$ ની કિંમત શોધો.

$(1 - \tan 348^{\circ})(1 + \cot 417^{\circ})$ ની કિંમત શોધો.

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