Final answer:
To write the function f(t) as a sum of Heaviside functions, we need to express f(t) in terms of intervals where different functions apply. Then, we can write f(t) as a sum of Heaviside functions using the given intervals.
Step-by-step explanation:
To write the function f(t) as a sum of Heaviside functions, we need to express f(t) in terms of intervals where different functions apply. First, let's break down the given function into three intervals:
- For 0 ≤ t ≤ 2: f(t) = t
- For 2 < t ≤ 4: f(t) = 2t - 2
- For t > 4: f(t) = 6
Now, we can write f(t) as a sum of Heaviside functions:
f(t) = t * uc(t - 0) + (2t - 2) * uc(t - 2) + 6 * uc(t - 4)