Question

已知f(x)是奇函數，g(x)是偶函數，且f(x)+g(x)＝x+1，則函數f(x)與g(x)的解析式分別為

1. A.
   f(x)＝x²，g(x)＝-x²+x+1
2. B.
   f(x)＝3x，g(x)＝-2x+1
3. C.
   f(x)＝x，g(x)＝1
4. D.
   f(x)＝3x²+1，g(x)＝-3x²+x

Answer 1

C