Thuc hien cac phep tinh mot cach hop li nhat:
1 + \(\frac{1}{2}\)x (1 + 2) +\(\frac{1}{3}\)x (1 + 2 + 3) + \(\frac{1}{4}\)x (1 + 2 + 3 + 4) +......+\(\frac{1}{20}\) x (1 + 2 +...+ 20)
Giải chi tiết hộ mình nha!!!!!!!!
thuc hien cac phep tinh sau 1 cach hop ly (3.4.2^16)^2/11.2^13.4^11-16^0
1/4 - 1/3+ 5/12 Thuc hien cac phep tinh (tinh hop li neu co the)
thuc hien cac phep tinh
1-2-3+4+5-6-7+...+2001-2002-2003+2004
thuc hien cac phep tinh sau ;
2va3/4 . (-0,4)+ 1va3/5 . 1,75 + (-7,2) : 9 / 11
1/8 . 15va2/5 + 1va4/5 . 7/8 - 17va 1/5 . 1/8
-5/7 . 2/11 + (-5) / 7 . 9/11 + 1va5/7
6/5 + 5/8 : 5 - 3/16 . (-2)3
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
a. 2 nhan 7 mu 2 - 16 nhan 2 mu 3
b. 17 nhan 120 + 17 nhan ( -20 )
thuc hien phep tinh a) 4.52- 81 : 32 ( cac ban giup minh nhe)
Thuc hien phep can bang can ro bec van,cho cac qua can 200g va 300g va tui muoi 600g,lam the nao de biet duoc khoi luong do chinh xac ma chi 1 lan can