MCQ
જો $x + \frac{1}{x} = \sqrt 3 ,$ તો $x =$
- A$\cos \frac{\pi }{3} + i\,\sin \frac{\pi }{3}$
- B$\cos \frac{\pi }{2} + i\,\sin \frac{\pi }{2}$
- C$\sin \frac{\pi }{6} + i\,\cos \frac{\pi }{6}$
- ✓$\cos \frac{\pi }{6} + i\,\sin \frac{\pi }{6}$
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વિધાન $-2:$ રેખા $y = mx - \frac{1}{{2m}}(m \ne 0)$ પરવલય $y^2 = - 2x$ ના બિંદુ $\left( { - \frac{1}{{2{m^2}}}, - \frac{1}{m}} \right)$ આગળના સ્પર્શકનું સમીકરણ છે