\(2^2\cdot6-18:3^2+15\cdot2\)
\(=2\cdot\left(2\cdot6+15\right)-18:9\)
\(=2\cdot27-2\)
\(=54-2\)
\(=52\)
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Thực hiện phép tính:4.5mu2-18:3mu2
tinh cac tong sau
A= 4/ 3*7+4/7*11+4/11*15 +...+4/107*111
B= 2/15 +2/35+2/63+...+2/399
C= 7/10*11+7/11*12+7/12*13+...+7/69*70
D= 6/15*18+6/18*21+6/21*24+...+6/87*90
E= 3 mu 2/ 8*11+ 3mu2/11*14+3mu2/14*17+...+3 mu2 / 197*200
22.6-18:32+15.2
4.5mu2-3mu2.(2018 mu0+3mu2)
giup minh voi minh can gap
M= \(\dfrac{5.4^{14}.27^6-4^4.3^{20}.8^7}{15.2^{10}.6^{18}-7.2^{29}.9^9}\)
A=3mu2+3mu2+2mu2+2mu2+.........=1mu2+1mu2
5⁶ : 5³ +2³ :2²
3333 : 3 + 225 :15
15.2³ + 4.3² - 5.7
5.4² - 18 :3²
6² : 4.3 +2.5²
80 - ( 4.5² -3.2³)
Rút gọn biểu thức sau :
P = \(\frac{12^{10}+6^9.4^6}{15.2^{18}.9^4-2^{19}-27^3}\)
rut gon : Q= \(\frac{25.4^{15}.9^9-2^9.6^{20}}{15.2^{25}.3^{19}-11.2^{11}.6^{18}}\)