Find the value of the following expression upto four places of decimals.$$\left[ {1 + \frac{1}{{1 \times 2}} + \frac{1}{{1 \times 2 \times 4}} + \frac{1}{{1 \times 2 \times 4 \times 8}} + \frac{1}{{1 \times 2 \times 4 \times 8 \times 16}}} \right]$$

Find the value of the following expression upto four places of decimal

1.	Find the value of the following expression upto four places of decimals.$$\left[ {1 + \frac{1}{{1 \times 2}} + \frac{1}{{1 \times 2 \times 4}} + \frac{1}{{1 \times 2 \times 4 \times 8}} + \frac{1}{{1 \times 2 \times 4 \times 8 \times 16}}} \right]$$
A.	0.6414
B.	0.6415
C.	0.6416
D.	0.6428
Answer» D. 0.6428