\(\dfrac{4}{27}.\left(-3\right)^2=\dfrac{4}{27}.9=\dfrac{4.9}{27}=\dfrac{36}{27}=\dfrac{4}{3}\)
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Các câu hỏi tương tự
a. 3/2.(5/7-4/3)-4/3(5/7-3/2)
b. 7/9.(27/35-4/3)-4/3(27/35-7/9)
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
Tính hợp lý
a. 3/2.(5/7-4/3)-4/3.(5/7-3/2)
b.7/9.(27/35-4/3)-4/3.(27/35-7/9)
Chuyển vế rồi tính
45-3*(x+5)=(-27)-2*(4-x)
(-53)+3*(-x-5)=(-5)*(4-x)
27-(3+x)-3x=45-2*(x+5)
Xem chi tiết
NN
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 )
\(\dfrac{-12}{4}.\dfrac{8}{9}\)
\(-3.\dfrac{7}{6}\)
\(\dfrac{-15}{9}.\dfrac{27}{5}\)
\(-9.\dfrac{4}{27}\)
Tìm số nguyên x, y, z, t; biết:
27/4=(-x)/3=3/(y2)=(z+3)3/-4=| |t|-2 |/8
/ là phần nhé, VD: 27/4 là 27 phần 4
Giải đầy đủ Mk tick, nếu cho mỗi đáp án ko tick
a) 2^7 . 9^3 / 6^5 . 8^2
b) 6^10 . 27^5 / 4^5 . 81^6
c) 3^18 . 32^9 / 64^7 . 27^6
d) 9^12 . 3^5 + 9^15 / ( 2. 27 )^5 . 3^14
e) 5^4 + 2^2 . 5^2 - 125 / 2^3 . 3
2/3 .7/15 - 2/3 .5/27
________________
-4/9.7/15+4/9.5/27
giup mk voi
Tính nhanh
A=182.[1+1/3+1/9+1/27/2+2/3+2/9+2/27:4-4/7-4/49-4/343/1-1/7-1/49-1/343]=919191/808080
a) 3 mũ x=27
b)5 mũ 2 x =125
c)4 mũ x . 4 mũ 2 = 64
d)3 mũ 2x :3 =27