Which of the following systems is linear?
A. y(t) = sin(x(t))
B. y(t) = log(x(t))
C. y(t) = cos(x(t))
D. y(t) = dx(t)/dt
Answer:A
Which of the following systems is linear?
A. y(t) = sin(x(t)) B. y(t) = log(x(t)) C. y(t) = cos(x(t)) D. y(t) = dx(t)/dt
Explanation: Only d satisfies both the scaling and the additivity properties.