$\frac{d}{dx}\left( \frac{1}{x^4 \sec x} \right) = $

  • A
    $\frac{x \sin x + 4 \cos x}{x^5}$
  • B
    $\frac{-(x \sin x + 4 \cos x)}{x^5}$
  • C
    $\frac{4 \cos x - x \sin x}{x^5}$
  • D
    આમાંથી કોઈ નહીં

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$\frac{1}{2}$ નું મૂલ્ય શું છે?

$\cos\, 120^{\circ}$ નું મૂલ્ય ..... થાય.

જો $\tan \theta = \frac{1}{\sqrt{5}}$ હોય અને $\theta$ પ્રથમ ચરણમાં હોય,તો $\cos \theta$ નું મૂલ્ય શોધો:

નીચેનામાંથી કયો/કયા સંબંધ સાચો/સાચા છે?
$(A)\ \sin (90^{\circ}+\theta)=\cos (-\theta)$
$(B)\ \sin (180^{\circ}-\theta)=\cos (90^{\circ}-\theta)$
$(C)\ \sin (360^{\circ}-\theta)=\cos (360^{\circ}-\theta)$
$(D)\ \sin (180^{\circ}+\theta)=\cos (90^{\circ}-\theta)$

$\int\limits_0^{\frac{\pi }{4}} {\sin 2x} \,dx$ ની કિંમત શોધો.

Difficult
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