Question

Question~

Answer 1

Answer:

• B. 1

Step-by-step explanation:

Multiply the first term by $x^a$, the second term by $x^b$, the third term by $x^c$.

The first term becomes:

• $x^a/(x^a+x^b+x^c)$

The second term becomes:

• $x^b/(x^a+x^b+x^c)$

The third term becomes:

• $x^c/(x^a+x^b+x^c)$

Their sum is:

• $(x^a+x^b+x^c)/(x^a+x^b+x^c) = 1$

Correct choice is B