15.2+4.3=?
2.3.4.5.6.7.8.9=?
B =7.6^10.2^21.3^6-2^19.6^15
9.6^15.2^13-4.3^15.2^26
15.2^24.3^14-4.3^15.2^24
2^24.3^14.1
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)
15.23 + 4.32 - 5.7= ?
15*23+4*32-5*7
=15*8+4*9-35
=120+36-35=120+(36-35)=120+1=121
ta có: 15.23 + 4.32 - 5.7
= 15 . 8 + 4 . 9 - 35
= 120 + 36 - 35
= 120 - (36 - 35)
= 120 + 1 = 121
15.23+4.32.5.7
tính giúp mình cái
M= \(\dfrac{5.4^{14}.27^6-4^4.3^{20}.8^7}{15.2^{10}.6^{18}-7.2^{29}.9^9}\)
\(=>M=\dfrac{2^{28}.3^{18}.5-2^{29}.3^{20}}{2^{28}.3^{19}.5-2^{29}.3^{18}.7}\)
\(=\dfrac{2^{28}.3^{18}\left(5-2.3^2\right)}{2^{28}.3^{18}\left(3.5-2.7\right)}\)
\(=5-2.3^2\)
\(=5-2.9\)
\(=5-18\)
\(=-13\)
\(#Nzgoca\)
Ai muốn lì xì thì nhanh tay :
Tính A = 15.23 + 4.32 - 5.7 ( KHÔNG TRẢ LỜI LINH TINH )
A = 15.23 + 4.32 - 5.7
=> A = 15.8 + 4.9 - 5.7
=> A = 120 + 36 - 35
=> A = 156 - 35
=> A = 121
15.23 + 4.32 – 5.7 = 15.8 + 4.9 – 5.7 = 120 + 36 – 35 = 121
biết 15.23+4.32-5.7=a2trong đó a là số tự nhiên. Khi đó giá trị của a là
a)204-84:12
b)15.2(mũ3)+4.3(mũ 2)-5.7
c)5(mũ6):5(mũ3)+2(mũ3).2(mũ2)
d)164.53+47.164
a) \(204-84:12=204-7=197\)
b) \(15.2^3+4.3^2-5.7=15.8+4.9+5.7=120+36+35=156+35=191\)
c) \(5^6:5^3+2^3.2^2=5^3+2^5=125+32=157\)
d) \(164.53+47.164=164.\left(53+47\right)=164.100=16400\)
_Chúc bạn học tốt_