\(27^8:9^4=\left(3^3\right)^8:\left(3^2\right)^4=3^{24}:3^8=3^{24-8}=3^{16}\)
Đúng 3
Bình luận (1)
Các câu hỏi tương tự
C=\(\frac{\frac{8}{9}-\frac{8}{27}-\frac{8}{81}+\frac{8}{243}}{4-\frac{4}{3}+\frac{4}{9}+\frac{4}{27}}\)
Tính
[(5*4^6*9^4-3^9*(-8)^4]/[4*2^13*3^8+2*8^4*(-27)^3]
21 tháng 2 2022 lúc 17:01
dfrac{-1}{3}.dfrac{2}{5}dfrac{-3}{7}.dfrac{4}{15}dfrac{-9}{3}.dfrac{15}{27}dfrac{-5}{6}.( -12 )dfrac{-12}{4}.dfrac{8}{9}-3.dfrac{7}{6}dfrac{-15}{9}.dfrac{27}{5}-9.dfrac{4}{27}
Đọc tiếp
\(\dfrac{-1}{3}.\dfrac{2}{5}\)
\(\dfrac{-3}{7}.\dfrac{4}{15}\)
\(\dfrac{-9}{3}.\dfrac{15}{27}\)
\(\dfrac{-5}{6}.\)( -12 )
\(\dfrac{-12}{4}.\dfrac{8}{9}\)
\(-3.\dfrac{7}{6}\)
\(\dfrac{-15}{9}.\dfrac{27}{5}\)
\(-9.\dfrac{4}{27}\)
1) 73 – (2 – 9) 2) (–45) + 27 – 8 3) 27 – 52 + (–18) 4) (–4) . (–12) 5) (–36) : 9 6) (–14) : (–7) 7) 24 : (–8) . (–15) ...
Đọc tiếp
1) 73 – (2 – 9) 2) (–45) + 27 – 8 3) 27 – 52 + (–18)
4) (–4) . (–12) 5) (–36) : 9 6) (–14) : (–7)
7) 24 : (–8) . (–15) 8) (–54) – (–6) . 5 + 9 9) (–2) . 25 + 54 : (–3)3
10) (35 – 28) . (–17 + 12)2 11) –400 : (–3 – 7)2 + 9 12) (–5)2 . (–2) + 48 : (–4)2 13) (–10) + 54 : [(–3)2 . (–4) + (14 – 17)2] 14) (–60) : [11 + (6 – 9)2] 15) –70 : {46 – [12 + 5 . (–32 : 16)2]} – 20210
22/25.(5/11-8/9)-8/9.(27/4-22/25)
22/25. (5/11-8/9)-8/9. (27/4-22/25)
C=5.4^6.9^4-3^9.(-8)^4/4.2^13.3^8+2.8^4.(-27)^3
Dạng 1. Thực hiện phép tính (tính nhanh nếu có thể)
a) 1/2 + 3/4 - (3/4 - 4-5)
b) (9/16 + 8/-27) - (19/27 - 7/16 - 2)
c) - 5/8 . (4/9 + 7/-12)
d) 7/10 . -3/5 + 7/10 . -2/5 - -3/10
e) -3/7 . 5/9 + 4/9 . -3/7 + 2 3/7
f) 8 2/7 - (3 4/9 + 4 2/7)
h) 3 . (-1/2 )^2 - (4/5 + 8/15) : 5/6
các bạn giúp mình nha!!
(8^4 . 8^5 . 13 + 27 . 8^9) : (5 . 2^26)