5 x 5 x5 x5 x 5=
5 x 3 x 10=
1x2x3x4=
Tính tổng
A=1 x 5 x 51 x52 x 53x54x55x56x57x58x59x510
kết quả là 5 ^ 56
5 x 5 x 5 x 5 x5 x5 x 5 x 5 x 5 x 5 : 25 X10
11111111111111111111111111111111111111111111111111111111111 x 2222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222 x 5 x5 x5 x5 x5 x5 x5 x5 x55x5x55x5x5x5x5x5x5x5x5xx5x5x5x5x55x5x5x5x5x55x5555xxxx55x0x66666666x6x6x6x6x6x66x6x6x6x = ........
mik chỉ k cho 2 người thôi nhé
Bài 4 Tính theo mẫu 9 10 x 5 6 9 x 5 10 x 6 3 x 3 x5 5 x 2 a 4 3 x 9 10 b 9 26 27 8 c 40 7 5 14chú ý dấu là phần nha các bạn
đố ai làm được 😈😈😈😈
https://meet.google.com/enu-hnji-aix
Tính nhanh:
( 13,75- 0,48 x 5 ) x (42,789 :3 +2,84 x6) . (1.8 x5 - 0,9 x 10)
Tính f(x) + g(x) – h(x) biết:
f(x) = x5 – 4x3 + x2 – 2x + 1
g(x) = x5 – 2x4 + x2 – 5x + 3
h(x) = x4 – 3x2 + 2x – 5
Ta có: f(x) + g(x) – h(x)
= (x5 – 4x3 + x2 – 2x + 1) + (x5 – 2x4 + x2 – 5x + 3) – (x4 – 3x2 + 2x – 5)
= x5 – 4x3 + x2 – 2x + 1 + x5 – 2x4 + x2 – 5x + 3 – x4 + 3x2 - 2x + 5
= (x5 +x5) – (2x4 + x4) – 4x3 + (x2 + x2 + 3x2)- (2x + 5x + 2x) + (1 + 3 + 5)
= (1 + 1)x5 – (2 + 1)x4 – 4x3 + (1 + 1 + 3)x2 - (2 + 5 + 2)x + (1 + 3 + 5)
= 2x5 – 3x4 – 4x3 + 5x2 – 9x + 9
22 /5 x 6 / 121 x 11/4 x3/5 x 1/3 x5 /4
\(\dfrac{22}{5}\times\dfrac{6}{121}\times\dfrac{11}{4}\times\dfrac{3}{5}\times\dfrac{1}{3}\times\dfrac{5}{4}\)
\(=\left(\dfrac{22}{5}\times\dfrac{5}{4}\right)\times\left(\dfrac{6}{121}\times\dfrac{11}{4}\right)\times\left(\dfrac{3}{5}\times\dfrac{1}{3}\right)\)
\(=\dfrac{11}{2}\times\dfrac{3}{22}\times\dfrac{1}{5}\)
\(=\dfrac{3}{20}\)
\(=\dfrac{22\times6\times11\times3\times1\times5}{5\times121\times4\times5\times3\times4}=\dfrac{11\times2\times6\times11\times1}{11\times11\times4\times5\times4}=\dfrac{2\times6\times1}{4\times5\times4}=\dfrac{18}{100}=\dfrac{9}{50}\)
CÂU1 f(x)=x5-4x3+x2-2x+1 CÂU 2 G(X)=X5-2X4+X2-5X+3 CÂU 3H(X)=X2-3X2+ 2X-5
-5.(x+1/5)-1/2.(x-2/3)=3/2.x5/6