1/1 × 2 + 1 / 2 ×3 + 1/3 ×4 + 1/4 ×5 + 1/5 ×6 20/08/2021 Bởi Serenity 1/1 × 2 + 1 / 2 ×3 + 1/3 ×4 + 1/4 ×5 + 1/5 ×6
Đáp án: 5/6 Giải thích các bước giải: 1/1×2 + 1/2×3 + 1/3×4 + 1/4×5 + 1/5 ×6 = 1/1 – 1/2 + 1/2 – 1/3 + 1/3 – 1/4 + 1/4 – 1/5 + 1/5 – 1/6 =1/1 – 1/6 = 5/6 Bình luận
Đáp án: $\frac{1}{1}$ × 2 + $\frac{1}{2}$ × 3 + $\frac{1}{3}$ ×4 + $\frac{1}{4}$ × 5 + $\frac{1}{5}$ × 6 =$\frac{1}{1}$ – $\frac{1}{2}$ + $\frac{1}{2}$ – $\frac{1}{3}$ + $\frac{1}{3}$ – $\frac{1}{4}$ + $\frac{1}{4}$ – $\frac{1}{5}$ + $\frac{1}{5}$ – $\frac{1}{6}$ = $\frac{1}{1}$ – $\frac{1}{6}$ = $\frac{5}{6}$ xin ctrlhn Bình luận
Đáp án:
5/6
Giải thích các bước giải:
1/1×2 + 1/2×3 + 1/3×4 + 1/4×5 + 1/5 ×6
= 1/1 – 1/2 + 1/2 – 1/3 + 1/3 – 1/4 + 1/4 – 1/5 + 1/5 – 1/6
=1/1 – 1/6
= 5/6
Đáp án:
$\frac{1}{1}$ × 2 + $\frac{1}{2}$ × 3 + $\frac{1}{3}$ ×4 + $\frac{1}{4}$ × 5 + $\frac{1}{5}$ × 6
=$\frac{1}{1}$ – $\frac{1}{2}$ + $\frac{1}{2}$ – $\frac{1}{3}$ + $\frac{1}{3}$ – $\frac{1}{4}$ + $\frac{1}{4}$ – $\frac{1}{5}$ + $\frac{1}{5}$ – $\frac{1}{6}$
= $\frac{1}{1}$ – $\frac{1}{6}$
= $\frac{5}{6}$
xin ctrlhn