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987=10 mu 2.9+10 mu1.8+10mu 0.7
2564= 10 mu 3. 2+ 10 mu 2.5 +10 mu 1 .6+ 10 mu 0 . 4
abcd(gach tren dau) = 10mu 3.a+ 10 mu 2 .b + 10 mu 1 .c+10 mu 0.d
xin loi ban nha, minh khong viet duoc luy thua
987=9.100+8.10+7.1 2564=2.1000+5.100+6.10+4.1 abcde=a.10000+b.1000+c.100+d.10+e.1
=9.102+8.101+7.100 =2.103+5.102+6.101+4.100n =a.104+b.103+c.102+d.101+e.100
987 = 900 + 80 + 7
= 9.100 + 8.10 + 7
= 9.102 + 8.101 + 7.100
2564 = 2000 + 500 + 60 + 4
= 2.1000 + 5.100 + 6.10 + 4
= 2.103 + 5.102 + 6.101 + 4.100
= a.10000 + b.1000 + c.100 + d.10 + e
= a.104 + b.103 + c.102 + d.101 + e.100
987=9.100+8.10+7.1=9.102+8.10+7.100
2564=2.1000+5.100+6.10+4.1=2.103+5.102+6.10+4.100
abcde=a.10000+b.1000+c.100+d.10+e.1=a.104+b.103+c.102+d.10+e.100
987=900+80+7=9.100+8.10+7.1=9.102+8.101+7.100
2564=2000+500+60+4=2.1000+5.100+6.10+4.1=2.103+5.102+6.101+4.100
abcde=10000.a+1000.b+100.c+10.d+1.e=104.a+103.b+102.c+101.d+100.e
987=9.102+8.101+7.100
2564=2.10^3+5.10^2+6.10^1+4.10^0
abcde=a.10^4+b.10^3+c.10^2+d.10^1+e.10^0
k mik nha
987=9.10^2+8.10^1+7.10^0
2564=2.10^3+5.10^2+6.10^1+4.10^0
abcde=a.10^4+b.10^3+c.10^2+d.10^1+e.10...
987= 10^2. 9+ 10.8+ 10^0. 7
2564= 10^3. 2+ 10^2 . 5+ 10.6 + 10^0. 4
abcde= 10^4.a+ 10^3.b+10^2.c+10.d+10^0.e
987 = 9 . 100 + 8 . 10 + 7
= 9 . 102 + 8 . 101 + 7 . 100
2564 = 2 . 1000 + 5 . 100 + 6 . 10 + 4
= 2 . 103 + 5 . 102 + 6 . 101 + 4 . 100
abcde = a . 10 000 + b . 1000 + c . 100 + d . 10 + e
= a . 104 + b . 103 + c . 102 + d . 101 + e . 100
987=9.100+8.10+7.1=9.102+8.101+7.100
2564=2.1000+5.100+6.10+4.1=2.103+5.102+6.101+4.100
abcde=a.10000+b.1000+c.100+d.10+e.1=a.104+b.103+c.102+d.101+e.100
987=9.100+8.10+7
=9.10 mũ 2+8.10 mũ 1+7.10 mũ 0
2564=2.1000=5.100+6.10+4
=2.10 mũ 3+5.10 mũ 2+6.10 mũ 1+4.10 mũ 0
abcd=a.1000+b.100+c.10+d
=a.10 mũ 3+b.10 mũ 2+c.10 mũ 1+d.10 mũ 0
k cho mk nha
987 = 900 + 80 + 7
= 9 . 100 + 8 . 10 + 7 . 1
= 9 . 102 + 8 . 101 + 7 . 100
2546 = 2000 + 500 + 40 + 6
= 2 . 1000 + 5 . 100 + 4 . 10 + 6 . 1
= 2 . 103 + 5 . 102 + 4 . 101 + 6 . 100
abcd = a . 1000 + b . 100 + c . 10 + d . 1
= a . 103 + b . 102 + c . 101 + d . 100