Show that three of the vectors u=(1,1,-1), v=(-1,1,1), w=(1,3,-1), x=(1,1,0) form a basis for space and express the fourth vector as a linear combination of these basis vectors.

A man sets out from an oasis to walk acorss the desert to a town which is 55 km due north. Unfortuanately, there is a mountain that he must walk around the reach the town. On the first day walks 20 km on a bearing of 340 degrees. On the second day he walks another 20 km on a bearing of 20 degrees....

My name is chris and I am currently attending ITT technical. My question is how to do vector problems in trig.

I'm facing problem how to visualise vevtors when our sir teaches... what exactly are vectors how do they look like... how can we easily understand these properties such as rings etc

hi how do you do multiplying out brackets can sum1 do me hwk a) 3(a+2b+5)+2a+b+3 fanks soph x:)