\(\dfrac{3}{1.4}+\dfrac{3}{4.7}+\dfrac{3}{7.10}+....+\dfrac{3}{43.46}\)
\(=\dfrac{3}{1}-\dfrac{3}{4}+\dfrac{3}{4}-\dfrac{3}{7}+\dfrac{3}{7}-\dfrac{3}{10}+.....+\dfrac{3}{43}-\dfrac{3}{46}=3-\dfrac{3}{46}=\dfrac{135}{46}\)
Học tốt nha e
S=3/1.4 +3/4.7 +3/7.10 +...+3/40.43 +3/43.46
S=3/1.4+3/4.7+3/7.10+...+3/40.43+43.46 CHứng minh S<1
Cho S=3/1.4+3/4.7+3/7.10+...+3/40.43+3/43.46 . Chứng tỏ rằng S<1
cho S= \(\dfrac{3}{1.4}+\dfrac{3}{4.7}+\dfrac{3}{7.10}+...+\dfrac{3}{40.43}+\dfrac{3}{43.46}\)
Hãy chứng tỏ rằng S<1
CHO S : 3/1.4 + 3/4.7 + 3/7.10 ... + 3/40.43 + 3/43.46
HÃY CHỨNG TỎ RẰNG S <1
Cho S= 3/1.4+3/4.7+3/7.10+.......3/40.43+3/43.46.
Hãy chứng tỏ rằng S<1
cho S= 3/1.4 cong 3/4.7 cong 3/7.10 cong . . . cong 3/40.43 cong 3/ 43.46 .Hay chung to rang Slon hon 1
Cho S =\(\frac{3}{1.4}+\frac{3}{4.7}+\frac{3}{7.10}+....+\frac{3}{40.43}+\frac{3}{43.46}\)
Hãy C/M S<1
Cho S=\(\frac{3}{1.4}+\frac{3}{4.7}+\frac{3}{7.10}+.....+\frac{3}{40.43}+\frac{3}{43.46}.\)
Hãy chứng tỏ rằng S<1
