1 + 13 + 14 + ............. + 198 + 199 (98 số hạng)
= 1 + 1 + 1 + 1 + .......... + 1 (98 số hạng)
= 98 . 1
= 98
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Các câu hỏi tương tự
1:" thuc hien phep tinh : (-1)+2-3+4-....-99+100
1/4 - 1/3+ 5/12 Thuc hien cac phep tinh (tinh hop li neu co the)
Thuc hien phep tinh sau
\(\frac{11}{5.7}+\frac{11}{7.9}+.......+\frac{11}{59.61}\)
Guip mik voi
HELP ME!!!!!!!!!!!!!!!!!!!!!1
thuc hien phep tinh
m=1+(-2)+3+(-4)+...+(-2016)+2017
thuc hien phep cac phep tinh sau:
a, (1-1/2).(1-1/3).(1-1/4)...(1-1/100)
b, (1+1/1.3).(1+1/2.4).(1+1/3.5)...(1+1/99.101)
thuc hien cac phep tinh
1-2-3+4+5-6-7+...+2001-2002-2003+2004
Thuc hien phep tinh:
a) 32.(-1/2)3+1/4
b) 16.(1/2)2.1/2
c) 17/22+4/25+29/25+0,5+5/22
d) 3/11-7/15+8/11-8/15+0.25
Cac ban ghi cac buoc lam gjum mik nha
Thuc hien phep tinh:
E=\(1+\frac{1}{2}\left(1+2\right)+\frac{1}{3}\left(1+2+3\right)+\frac{1}{4}\left(1+2+3+4\right)+...+\frac{1}{2016}\left(1+2+...+2016\right)\)
Thuc hien phep tinh ) B = 1 - 3 + 5 - 7 + 9 - 11 + ... + 2017 -2019