Cho hệ các vector U = {(1,2,0),(0,-1,1),(2,3,1),(1,0,2)}< br />
a. Tìm số chiều và một cơ sở W của không gian con sinh bởi hệ vector U .

b. Tìm tham số k để

u = (2,3,k^2+ 1) là một tổ hợp tuyến tính của W , và suy ra [u]w

What is this equation in point-slope form?

You are updating your garage and the only thing left to paint is your garage day. you're only going to paint the slide that faces the street. the garage door is 9 fert 8inches tall and 120 inches wide. you need to know the surface area of the side of the garage door to determine how much paint to buy. the hardware store sells paint by how much covers a square foot. what is the surface area you should report to the hardware store what is the answer

According to the 2008 u.s. census, california had a population of approximately 4 × 10^7 people and florida had a population of approximately 2 × 10^7 people. which of the following is true? a. the population of california was approximately two times the population of florida. b. the population of florida was approximately twenty times the population of california. c. the population of florida was approximately two times the population of california. d. the population of california was approximately twenty times the population of florida.