Answer:
option b
amplitude none ; period 5π/2
Step-by-step explanation:
Given in the question a function,
f(t)=-tan(0.4t)
The tangent function does not have an amplitude because it has no maximum or minimum value. The period of a tangent function, y=atan(bx),is the distance between any two consecutive vertical asymptotes.
Period = π/|b|
= π/2/5
= 5π/2
