Question

Bài 1 ;Tính :

B = \(512-\dfrac{512}{2}-\dfrac{512}{2^2}-\dfrac{512}{2^3}-...-\dfrac{512}{2^{10}}\)

Answer 1

B=512(1-1/2-1/2^2-1/2^3-...-1/2^10

B=512*1/1024

B=1/2

B=0.5