\(16^3\cdot2^4\)
\(=\left(2^4\right)^3\cdot2^4\)
\(=2^{12}\cdot2^4\)
\(=2^{12+4}\)
\(=2^{16}\)
`16^3 .2^4`
`=(2^4 )^3 .2^4`
`=2^(4.3).2^4`
`=2^12 .2^4`
`=2^(12+4)`
`=2^16`
Thực hiện phép tính 16^3 . 2^4 kết quả nào sau đây là đúng ?
a.16^3 b.2^7 c. 16^7 . 2^4 d. 16^4
[( 5^16+4^16) . 3^17 3^10 ] .(2^4- 4^2)
A=1+1/2(1+2)+1/3(1+2+3)+1/4(1+2+3+4)+...+1/16(1+2+3+4+...+16)
E=1+1/2×(1+2)+1/3×(1+2+3)+1/4×(1+2+3+4)+...+1/16×(1+2+3+4+...+16)
tính hợp lý 1 + 1/2(1+2) +1/3(1+2+3)+1/4(1+2+3+4)+...+1/16(1+2+3+4+...+16)
2×4+2×4×8+4×8×16×8×16×32
3×4+2×6×8+4×12×16+8×24×32
Tính nhanh
A= 1+ 1/2 (1+2) +1/3 (1+2+3) +1/4 (1+2+3+4) +...+ 1/16 (1+2+3+4+...+16)
A = ( 2+4+6+...+2012+2014)-(3+5+...+2009+2011)
B = (3*4*2^16)^2/11*2^13*4^11-16^9
1+1/2(1+2)+1/3(1+2+3)+1/4(1+2+3+4)+...+1/16(1+2+3+4+...+16) tính hợp lý
1+1/2(1+2)+1/3(1+2+3)+1/4(1+2+3+4)+...+1/16(1+2+3+4+...+16) ? tinh hop ly
