TÍNH A SẼ BÍT
TA CÓ:A=2/3x3/60x63+2/3x3/63x66+2/3x3/66x69+.....+2/3x3/117x120
A=2/3x(3/60x63+3/63x66+3/66x69+.....+3/117x120
A=2/3x(3/60-3/63+3/63-3/66+3/66-3/69+....+3/117-3/120)
A=2/3x(3/60-3/120)
A=2/3x1/40
A=2/120=1/60
1/60 VA 2/2011
1/60 >2/2011
.so sánh A=2/60.63 + 2/63.66 + 2/66.69+...............+2/117.120+2/2011
so sánh A= 2/60.63 +2/63.66+2/66.69+...+2/117.120+2/2011 với B = 5/40.44+5/44.48+5/48.52+...+5/76.80+5/2011
2/60.63 + 2/63.66 +2/66.69 + ........ + 2/117.120 +2/2011
tính
A = \(\frac{2}{60.63}\)+ \(\frac{2}{63.66}\)+ \(\frac{2}{66.69}\)+ ...+ \(\frac{2}{117.120}\)+ \(\frac{2}{2011}\)
tính A=2/60.63+2/63.66+2/66.29+....+2/117.120+2/2011
So Sánh: A=2/(60.63)+2/(63.66)+...+2/(117.120)+2/2003 và B=5/(40.44)=5/(44.48)+...+5/(76.80)+5/2003
So sánh:
A=2/60.63 +2/63.66 +...+2/117.120 +2/2003
và B=5/40.44 +5/44.48 +...+5/76.80 +5/2003
Bài 2:So sánh:A=2/60.63+2/63.66+...2/117.120+2/2003 và B=5/40.44+5/44.48+...+76.80+5/2003
so sánh A= \(\frac{2}{60.63}+\frac{2}{63.66}+...+\frac{2}{117.120}+\frac{2}{2003}\)
và B=\(\frac{5}{40.44}+\frac{5}{44.48}+...+\frac{5}{76.80}+\frac{5}{2003}\)
