જો $\int (\sin 2x + \cos 2x) dx = \frac{1}{\sqrt{2}} \sin (2x - c) + a$ હોય,તો $a$ અને $c$ ની કિંમત શું છે?

  • A
    $c = \pi/4$ અને $a = k$ (એક સ્વૈચ્છિક અચળાંક)
  • B
    $c = -\pi/4$ અને $a = \pi/2$
  • C
    $c = \pi/2$ અને $a$ એક સ્વૈચ્છિક અચળાંક છે
  • D
    આમાંથી કોઈ નહીં

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શોધો: $\int \sin 2x \cos 3x \, dx$

$\int \frac{\cos 2x - 1}{\cos 2x + 1} dx = $

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