a)2+2^2=2+2x2=2x(1+2)
b)2+2^2+2^3=2+2^5=2+2x2x2x2x2=2x(1+2x2x2x2)=2x17
c)2+2^2+2^3+2^4=2+2^9=2+2x2x2x2x2x2x2x2x2=2x(1+2x2x2x2x2x2x2x2x2)=2x257
viet tong sau thanh tich;
a 2+2^2
b 2+2^2+2^3
c 2+2^2+2^3+2^4
Viet cac tong sau thanh mot binh phuong cua mot so tu nhien :
a) 13 + 23 + 33 + 43 = ?
b) 13 + 23 + 33 +43 + 53 = ?
Ai giai duoc nho ket ban voi minh nhe !
viet tong sau duoi dang mot luy thua
m= 22+22+23+24+25+....+22017
Viet tich sau duoi dang mot luy thua
2 .2 .2 .3 .3 .62 . 3
Viet tich sau duoi dang mot luy thua:
2. 2. 2. 3 .3 . 62 . 3
Viet moi tich , thuong sau duoi da`ng mot luy thua
5^8:25^2 ; 4^9:64^2 ; 2^25:32^4 ; 125^3:25^4
1) hieu cua tong cac so tu nhien le cohai chu so va tong cac so tu nhien chan co 2 chu so bang....
2) cho biet 418 abcd gach ngan tren dau : abc =1481 khi do abc=...
3) khi lan giai mot bai toan dang le phai chia mot so cho 2va cong thuong tim duoc voi 3 nhung do nham lan lan da nhan so do voi 2 va sau do lay tich tru di 3 mac du vay ket qua van dung so can chia cho 2 la ......
viet cac tich sau thanh 1 luy thua
a. 4 3. 8 2
b. 9 3.27 4
c. 27 3.9 4.243
Viet cac tich hoac thuong sau duoi dang mot luy thua :
34.35.
x3.x2.x
87.82
4n.42 (n €N)
3l+2:3k (kn €N)
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Mik cam on nhiu