1.1+1.3+1.5+1.7+1.9+1.11+1.13+1.15+1.17+1.19+1.21+.+1.99
问题描述:
1.1+1.3+1.5+1.7+1.9+1.11+1.13+1.15+1.17+1.19+1.21+.+1.99
答
162.85
1.1+1.3+1.5+1.7+1.9+1.11+1.13+1.15+1.17+1.19+1.21+.+1.99
162.85