Answer:
A
Step-by-step explanation:
It is undefined because you can’t have 0 as a denominater
Answer:
1
Step-by-step explanation:
Let us consider the case of 3 numbers: x, y, and z.
Then x/x+y+z + y/x+y+z + z/x+y+z = x+y+z/x+y+z = 1
The same works also for any quantity of numbers.
Answer:
1.1a+3.5b
Step-by-step explanation: