9.7-bo'lim : Polar koordinatali tangentlar

1. \(\displaystyle \theta = \frac{\pi }{2}\) da \(r = \theta \sin \left( {3\theta } \right)\) ga teguvchi chiziqni toping.
2. \(\displaystyle \theta = - \frac{\pi }{4}\) da \(r = \cos \left( {2\theta } \right) - \sin \left( \theta \right)\) ga teguvchi chiziqni toping.
3. \(\theta = \pi \) da \(r = \cos \left( {{\theta ^2} - \theta } \right)\) ga teginish chizig'ini toping.