Cho X = , với mỗi x = (x1, x2, x3) X, đặt || x || = | x1 | + | x2| +|x3| . Chứng minh rằng X cùng với ánh xạ trên trở thành một không gian Banach với các phép cộng và nhân thông thường.

Acylinder with a base diameter of x units has a volume of jxcubic units which statements about the cylinder are true? check all that apply. the radius of the cylinder is 2 x units. the radius of the cylinder is 2x units. the area of the cylinder's base is 200 square units. the area of the cylinder's base is a square units. the height of the cylinder is 2x units. the height of the cylinder is 4x units. mark this and return save and exit next submit