\(\left(5.4^{11}-3.16^5\right)\div4^{10}\)
(5.4^11-3.16^5):4^10=
=( 5 . 4 ^11 - 3. 4^2.5 ) : 4^10
= ( 5 . 4^11 - 3 . 4^10 ) : 4^10
= 4^10 ( 5.4 - 3 ) : 4^10
= 5.4 - 3
= 17
ĐÚng cho mình nha
(5.4^11-3.16^5):4^10=
5.411-3.4.45):410
=( 5 . 4 ^11 - 3. 4^2.5 ) : 4^10
= ( 5 . 4^11 - 3 . 4^10 ) : 4^10
= 4^10 ( 5.4 - 3 ) : 4^10
= 5.4 - 3
= 17
ĐÚng cho mình nha
a)\(\left(5.4^{11}-3.16^5\right):4^{10}\)
b)\(\dfrac{7256.4375-725}{3650+4375.7255}\)
c)100+98+96+...+4+2-97-95-...-3-1
giúp mình nhé
\(100 + 98 + 96 + ... + 2 - 97 - 95 - ... -1\)
\(= 100 + (98 - 97) + (96-95) +... + (2 - 1)\)
\(= 100 + 1 + 1 + 1 + ... +1\)
\(=100+1\cdot49\)
\(= 100 + 49 \)
\(= 149\)
Tính
(5.411-3.165):410
\(\left(5.4^{11}-3.16^5\right):4^{10}=\left(5.4^{11}-3.4^{10}\right):4^{10}\)
\(=5.4^{11}:4^{10}-3.4^{10}:4^{10}\)
\(=\frac{5.4^{11}}{4^{10}}-\frac{3.4^{10}}{4^{10}}=5.4-3=20-3\)
\(=17\)
(5.411 - 3.165) : 410
= 5.411:410 - 3.165:410
= 5 .(411:410) - 3. (42)5 : 410
= 5. 4 - 3. (410 : 410)
= 20 - 3.1
= 20 - 3
= 17
Chúc bn học tốt!!!
Tinh nhanh [28.54+56.36]:21:2 [5.4/11-3.16/5]:4/10 36.33-105.11+22-15
có thể viết rõ hơn ko mình ko hiểu
so sánh :
C=\(\frac{5^4.20^4}{25^5.4^5}\) và D=\(\left(\frac{-10}{3}\right)^5.\left(\frac{-6}{5}\right)^4\)
E=\(\left(1+\frac{2}{3}-\frac{1}{4}\right).\left(\frac{4}{5}-\frac{3}{4}\right)^2\)và F=\(2:\left(\frac{1}{2}-\frac{2}{3}\right)^3\)
I=\(\frac{2}{3}+\frac{1}{3}:\left(\frac{-8}{25}\right)\)và H=\(\frac{5}{11}.\frac{4}{11}+\frac{7}{11}.\frac{5}{11}-\frac{2}{3}\)
Rút gọn biểu thứ sau:
a)\(\frac{17.145-17.236-17.111}{202.34-202.178+202.127}\)
b)\(\frac{34.27-34.45}{56-74}\)
c)\(\frac{57.76-57.112}{42.\left(-132\right)+42.96}\)
d)\(\frac{6^3.15^3.16^3}{9^4.4^7}\)
e)\(\frac{14.8^725^5}{4^{11}.125^3}\)
g)\(\frac{3^{15}.14^4}{27^5.4^3.49^2}\)
a)A= \(\frac{17.(145-236-111)}{202.(34-178+127)}\)
=\(\frac{17.(-202)}{202.(-17)}\)
=\(1\)
Tính: ( 5.4^12-3.16^6):2^25
( 5 . 4 12 - 3 . 16 6 ) : 2 25
= ( 5 . 4 12 - 3 . 4 12 ) : 2 25
= ( 4 12 . 2 ) : 2 25
= 2 24 . 2 : 2 25
= 2 25 : 2 25
= 1