\(\frac{7,2:2x57,2+2,56x2x64}{4+4+8+12+20+....+220}\)
\(\frac{7,2:2x57,2+2,86x2x64}{4+4+8+12+20+...+220}\)
\(\frac{7,2:2x57,2+2,86x2x64}{4+4+8+12+20+...+220}\)
Tinh nhanh : \(\frac{7,2\div2\times57,2+2,86\times2\times64}{4+4+8+12+20+...+220}\)
Tính nhanh kết quả :
\(\frac{7,2\div2\times57,2+2,86\times2\times64}{4+4+8+12+20+......+220}\)
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AI thấy đúng thì tick nhé!!!
tính nhanh
A = \(\frac{7,2:2.57,2+2,86.2,64}{4+4+8+12+20+...220}\)
\(A=\frac{7,2:2\times57,2+2,86\times2,64}{4+4+8+12+20+...+220}\)
\(A=\frac{7,2:2\times2\times28,6+2,86\times2\times64}{4+4+8+12+20+32+52+84+136+220}\)
\(A=\frac{0,72\times286+0,72\times286}{2\times2+12\times2+52\times2+220\times2}\)
\(A=\frac{\left(0,72+1,28\right)\times286}{2\times\left(2+2+52+220\right)}\)
\(A=\frac{2\times286}{2\times286}\)
\(A=1\)
Tính nhanh nhất:
D = \(\frac{7,2\div2\times57,2+2,86\times2\times64}{4+4+8+12+20+...+220}\)
7,2 :2 × 57,2 + 2,86 ×2 × 64
4+4+8+12+20+... +220
7,2 : 2 x 57,2 + 2,86 x 2 x 64/4 + 4 + 8 + 12 + 20 + ... + 220
Bài làm
\(\frac{7,2:2.57,2+2,86.2.64}{4+8+12+16+...+220}\)
\(=\frac{572}{576}=\frac{143}{144}\)
7,2: 2x 57,2+ 2,86 x2x 64/4+ 4+ 8 +12+ 20...220 giải giúp nhanh tick 5 cái