Answer: $2.10
Step-by-step explanation:
In the standard form of the equation
The middle line =k
For our given problem
f(t) = 40cos (80t + 20)
On comparison we get k=0
Hence middle line=0
Answer:
<u><em>note:</em></u>
<u><em>find the attached solution</em></u>
Y=2x-4
45