Thuc hien phep tinh :
a) 4 phan 5 + -7 phan 15 . 1, 25
b) 2 phan 5 + 3 phan 5 . ( 4 1phan2 - 3,25)
thuc hien phep tinh
( 5*4^15*9-4*3^20*8^9) /( 5*2^9*6^19-7*2^29*27^6)
1/4 - 1/3+ 5/12 Thuc hien cac phep tinh (tinh hop li neu co the)
thuc hien phep tinh
(3^15 + 3^16 + 3^17) : (3^11 + 3^12 + 3^13) = ?
giup minh nha
1 thuc hien phep tinh
a] [3/8cong am3/4cong7/12] chia 5/6cong 1/2
thuc hien phep tinh sau mot cach hop ly:
45-|-15|:3
Thuc hien phep tinh ) B = 1 - 3 + 5 - 7 + 9 - 11 + ... + 2017 -2019
1:" thuc hien phep tinh : (-1)+2-3+4-....-99+100
Thuc hien phep tinh
a) \(\frac{-5}{9}+\frac{8}{15}+\frac{-2}{11}+\frac{4}{-9}+\frac{7}{15}\)
b) \(\left(3\frac{2}{5}+2\frac{3}{4}\right)-4\frac{2}{5}\)
