Rohan reads the following information in his textbook: While taking a sharp turn, a cyclist bends himself so as to attain the minimum centripetal force. Using this information, he derives the relation between the angle of bending ($\theta$), the velocity (v), and the radius (r) of the track as $\tan \theta = \large\frac{v^2}{r}$ . He also checks this relation that as $v \rightarrow 0, \theta \rightarrow 0$. The relation derived by Rohan is ___i___ as the dimensions on either side are ___ii___. The information in which alternative completes the given statement?

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