જો સમીકરણો $x = a \cos(\theta - \alpha)$ અને $y = b \cos(\theta - \beta)$ માંથી $\theta$ નો લોપ કરવામાં આવે,તો $\frac{x^2}{a^2} + \frac{y^2}{b^2} - \frac{2xy}{ab} \cos(\alpha - \beta)$ ની કિંમત કેટલી થાય?

  • A
    $\cos^2(\alpha - \beta)$
  • B
    $\sin^2(\alpha - \beta)$
  • C
    $sec^2(\alpha - \beta)$
  • D
    $cosec^2(\alpha - \beta)$

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Similar Questions

$\Delta XYZ$ માં $Y$ આગળ કાટખૂણો છે. જો $m \angle X = 60^{\circ}$ હોય,તો $\left(\sec Z + \frac{2}{\sqrt{3}}\right)$ ની કિંમત શોધો.

જો $180^{\circ} < \theta < 270^{\circ}$ હોય,તો $\sqrt{4 \sin^{4} \theta + \sin^{2} 2\theta} + 4 \cos^{2} \left(\frac{\pi}{4} - \frac{\theta}{2}\right)$ ની કિંમત શોધો.

જો $\tan A = \frac{1 - \cos B}{\sin B}$ હોય,તો $\tan 2A =$

જો $\sin \theta + \csc \theta = 2$ હોય,તો $\sin^2 \theta + \csc^2 \theta = $

જો $b \sin \alpha = a \sin (\alpha + 2\beta)$ હોય,તો $\frac{a + b}{a - b} = $

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