Final answer:
The value of a+b+c is 1.
Step-by-step explanation:
To find the value of a+b+c, we need to substitute the values of a, b, and c into the given equation. In this case, a = 1, b = 0.0211, and c = -0.0211. Therefore, the value of a+b+c is:
a + b + c = 1 + 0.0211 - 0.0211 = 1