Answer:
2
Step-by-step explanation:
the number before the x² is regarded as the identity element
Answer:

Step-by-step explanation:
let us assume

now
can be written as 
we know 
so 

now from above equation we can say that


Answer:
n=7
m= 7
Step-by-step explanation:
lmk if you need work
Answer:
i think that the inquality is true but idk the solution..
Step-by-step explanation: