Sketch the graphs of the following functions :

f(x) = 3 sec x

We know that g (x) = sec x is a periodic function with period π.


f (x) = 3 sec (x) is a periodic function with period π. So, we will draw the graph of f (x) = 3 sec (x) in the interval [0, π]. The values of f (x) = 3 sec (x) at various points in [0, π] are listed in the following table:



By plotting the above points, we obtain the required curve.



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