Question
Add the ordinates of the individual functions to graph each summed function on the indicated interval.$$y=-\frac{1}{4} \cos \left(\frac{\pi}{6} x\right)-\frac{1}{2} \cos \left(\frac{\pi}{3} x\right), 0 \leq x \leq 12$$
Step 1
It is a sum of two cosine functions with different amplitudes and frequencies. The amplitude of the first function is -1/4 and its frequency is π/6. The amplitude of the second function is -1/2 and its frequency is π/3. Show more…
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