<span>the series of xcosx is x summation from k = 0 to k = infinity of ((-1)^k x^2k)/(2k)!</span>
Answer:
11/25
Step-by-step explanation:
Reciprocal is the fraction flipped
The domain is all real numbers, since x can be any number and create a y value
This can be written in a few ways, including:
X:X
X: R
-(infinity sign) is less than or equal to X is less than or equal to (infinity sign)
Let's verify by substituting 1 to x.
2 - 8x = -6
2 - 8(1) = -6
2 - 8 = -6
-6 = -6
It is equal, therefore x = 1 is the solution.
