જો $x = a \cos^3 \theta$ અને $y = b \sin^3 \theta$ હોય,તો:

  • A
    $(\frac{a}{x})^{2/3} + (\frac{b}{y})^{2/3} = 1$
  • B
    $(\frac{b}{x})^{2/3} + (\frac{a}{y})^{2/3} = 1$
  • C
    $(\frac{x}{a})^{2/3} + (\frac{y}{b})^{2/3} = 1$
  • D
    $(\frac{x}{b})^{2/3} + (\frac{y}{a})^{2/3} = 1$

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પદાવલિ $\frac{\tan A}{1 - \cot A} + \frac{\cot A}{1 - \tan A}$ ને નીચે મુજબ લખી શકાય:

જો $\tan \theta - \cot \theta = 0$ અને $\theta$ એ ધન લઘુકોણ હોય,તો $\frac{\tan (\theta + 15^{\circ})}{\tan (\theta - 15^{\circ})}$ ની કિંમત શોધો.

જો $x$ વાસ્તવિક હોય અને $x+\frac{1}{x}=2 \cos \theta$ હોય,તો $\cos \theta=$

જો $\theta$ પ્રથમ ચરણમાં હોય અને $\tan \theta = \frac{3}{4}$ હોય,તો $\frac{\tan \left(\frac{\pi}{2}-\theta\right)-\sin (\pi-\theta)}{\sin \left(\frac{3 \pi}{2}+\theta\right)-\cot (2 \pi-\theta)} = $

$\cos \frac{\pi }{7} \cos \frac{2\pi }{7} \cos \frac{4\pi }{7} = $

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