I have to find the value of constant factor $c_1$ and $c_2$ and $n_0$ in equation for which this equation satisfy:
$$c_1\leq \frac12 - \frac3n \leq c_2$$
Here $n\geq n_0$.
So for what value of $c_1, c_2 $ and $n_0$, this equation will hold, Please help me out here. This is question of chapter name Asymptotic notation, In korman book it's answer is $c_1 = 1/14$, $c_2=1/2$ and $n_0 =7$ , But I am not able to figure out here how he found that value of $c_1, c_2$ and $n_0$.
Thanks in advance