The polynomial

has a unique root,

, for any

.
Hence

is a polynomial with roots

and
If its the one under the one with a written answer(the first on blank at the top) its b. 20% did not arrive.
Answer:
Select the one which meets the following characteristics.
Step-by-step explanation:
y = cos(2x)
Characteristics:
Mean line at y = 0
Amplitude = 1
Period = 360/2 = 180° or pi radians
i.e one complete cos cycle is 0 to 180, next is 180 to 360 and so on
Range : from -1 to 1
Answer: 4.234, 4.232, 4.228, 4.225
Step-by-step explanation:
When we have numbers higher than five we round up and when we have numbers below find we round down. When we have a number 5 we round up as well.