Question
Sketch the graphs of the following functions: $\text{f(x)}=3\sec\text{x}$

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| $x_i$ | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 |
| $f_i$ | 2 | 1 | 12 | 29 | 25 | 12 | 10 | 4 | 5 |