CMR 1+1/2+1/3+...+1/62+1/63+1/64 > 4
CMR:M=1+1/2+1/3+..+1/62+1/63+1/64>4
CM : 1+ 1/2+1/3+1/4+1/5+.....+1/62+1/63+1/64 > 4
Chứng tỏ rằng:
\(1+\dfrac{1}{2}+\dfrac{1}{3}+...+\dfrac{1}{62}+\dfrac{1}{63}+\dfrac{1}{64}>4\)
bài 1
chứng tỏ rằng
1+1/2+1/3+................1/62+1/63+1/64>4
1+1/2+1/3+...+1/62+1/63+1/64
Tính: 1 + 1/2 + 1/3 + ... + 1/62 + 1/63 + 1/64
C/m: 1+ 1/2 + 1/3 + .... + 1/62+1/63 + 1/64 > 4
Các bạn giải chi tiết giúp mik nhé
1, Tính :
a, A = 1.(-1)+3.(-1)^2+5.(-1)^3.7+(-1)^4+9.(-1)^5
b, 1-2-3+4+5-6-7+8+...+61-62-63-64