જો $\cos \theta + \sin \theta = \sqrt{2} \cos \theta$ હોય,તો $\cos \theta - \sin \theta =$

  • A
    $\sqrt{2} \sin \theta$
  • B
    $2 \sin \theta$
  • C
    $-\sqrt{2} \sin \theta$
  • D
    આમાંથી કોઈ નહીં

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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)} = $

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