Toán Lớp 4: B = (1- 3/4) × (1- 3/7) × (1- 3/10) ×… × (1- 3/100)
Leave a reply
Register Now
Login
Lost Password
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Toán Lớp 4: B = (1- 3/4) × (1- 3/7) × (1- 3/10) ×… × (1- 3/100)
Comments ( 2 )
Mình trình bày trong hình
$\text{Yến}$ ????
B = ( 1 – $\dfrac{3}{4}$ ) × ( 1 – $\dfrac{3}{7}$ ) × ( 1 – $\dfrac{3}{10}$ ) × … × ( 1 – $\dfrac{3}{100}$ )
= $\dfrac{1}{4}$ × $\dfrac{4}{7}$ × $\dfrac{7}{10}$ × …. × $\dfrac{97}{100}$
= $\dfrac{1 × 4 × 7 × … × 97}{4 × 7 × 10 × …. × 100}$
= $\dfrac{1}{100}$