Recent content by tweety24

sorry i meant s1 & s2 i did that and i get s2 = 7 + 2t1 s1 = -21 - t1

so I would need to isolate t1 in each equation after plugging the t2 value in?

this is how i got t2 = -3 1 2 -3 -2 -1 0 1 -2 3 -2 0 0 0 1 -3 that gave me t2 = -3 when i plug that back into the equations and get another augmented matrix it doesn't work...am i doing it wrong

i got up until solving for t2 = -3 but i have no idea where to go from there :S what do you guys mean by free parameter

lol yeahh i am

oh okayy...so then to start off would i need to find the determinant?

Homework Statement L1 : x = (0, 1, 2) + s(1, 0, 2) L2 : x = (4, 2, c) + t(−2, 0, d) If c = 5 & d = 0, find the point P on L1 and Q on L2 so that the distance between P & Q is the smallest possible. Homework Equations the point of intersection? The Attempt at a Solution...

okay sweet, thank you! =) Not really, I'm not sure how it would work the other way without the triple product.

Thanks =) So if I was going to solve for c1 would it be something like c1 = -2c3 + 3c3

Homework Statement a = [2, 2, 2] b = [3, 0, 1] Find all vectors c so that the vectors a, b, c are linearly dependent. Homework Equations (a x b) . c ( . = dot product)...is this how I'm supposed to get started? linearly dependent would mean make it equal to zero right...

thanks I tried that and got the correct answer :)

Homework Statement A welder fills a tank, volume 7.60 x 10^-2 m^3, with oxgyen (32.0 g/mol) at gauge pressure 3.25 x 10^5 Pa and temp. 36.0 degrees C. The tank has a small leak, and some of the oxygen leaks. When temp. is 22.4 degrees C, pressure of oxygen in tank is 1.80 x 10^5 Pa. Find...