\(B=\frac{7.6^{10}.2^{20}.3^6-2^{19}.6^{15}}{9.6^{19}.2^9-4.3^{17}.2^{26}}\)
\(B=\frac{7.3^{16}.2^{30}-2^{34}.3^{15}}{3^{21}.2^{28}-2^{28}.3^{17}}\)
\(=\frac{3^{15}.2^{30}.\left(7.3-2^4\right)}{3^{17}.2^{28}.\left(3^4-1\right)}=\frac{2^2.\left(21-16\right)}{3^2.\left(81-1\right)}=\frac{2^2.5}{3^2.2^4.5}=\frac{1}{3^2.2^2}=\frac{1}{36}\)
Tính giá trị biểu thức
B=\(\frac{7.6^{10}.2^{20}.3^6-2^{19}.6^{15}}{9.6^{19}.2^9-4.3^{17}.2^{26}}\)
tính giá trị biểu thức: B=7.610.220.36 - 219.615/9.619.29 - 4.317.226
tính giá trị:
A=\(\frac{5}{6}-\frac{-1}{12}+\frac{2}{3}-\frac{-2}{7}+\frac{1}{25}-\frac{-1}{4}-\frac{5}{42}\)
B=\(\frac{7.6^{10}.2^{20}.3^6-2^{19}.6^{15}}{9.6^{19}.2^9-4.3^{17}2^{26}}\)
A=\(\frac{7.6^{10}.2^{20}.3^6-2^{18}.6^{15}}{9.6^{19}.2^9-4.3^{17}.2^{26}}\)
mik cần trước 10h30m
Tinh: A=\(\frac{7.6^{10}.2^{20}.3^4-2^{19}.6^9}{9.6^{19}.2^9-4.3^{17}.2^{26}}\)
GIUP MINH VOI! AI NHANH VA DUNG THI MINH TICK CHO!
7.610.220.36 trừ 219.615
9.619.29 trừ 4.317.226
Tính (tính nhanh nếu có thể):
a) \(\dfrac{-13}{4}+\dfrac{19}{12}+\dfrac{5}{6}\)
b) \(\dfrac{7.6^{10}.2^{20}.3^6-2^{19}.6^{15}}{9.6^{19}.2^9-4.3^{17}.2^{26}}\)
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B=\(\dfrac{7.6^{10}.2^{21}.3^6-2^{19}.6^{15}}{9.6^{15}.2^{13}-4.3^{15}.2^{26}}\)
a, (7.6^10.2^20.3^6-2^19.6^15) : (9.6^19.2^9-4.3^17.2^20)
b, (5.4^15.9^9-4.3^20.8^9) : (5.2^9.6^19-7.2^29.27^6)
