If there is a fraction with more then one of the same number repeated behind the decimal, it is a repeating decimal
Answer:
I hope you get it .............
Answer:

Step-by-step explanation:
It is a linear homogeneous differential equation with constant coefficients:
y" + 4y = 0
Its characteristic equation:
r^2+4=0
r1=2i
r2=-2i
We use these roots in order to find the general solution:

Answer:
4-13=-9
Step-by-step explanation: