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Mathematics 6 Online
OpenStudy (anonymous):

Unit vectors

OpenStudy (anonymous):

true or false

hartnn (hartnn):

can vectors have length less than 1 ?

OpenStudy (anonymous):

sure

hartnn (hartnn):

will the vector with length less than 1, be shorter than the unit vector in its direction ?

OpenStudy (anonymous):

yes

hartnn (hartnn):

so what do u conclude ?

OpenStudy (anonymous):

its false..thats what i wrote first time but idk how to explain it

hartnn (hartnn):

do you know now ?

hartnn (hartnn):

take an example like 0.2i +0.1j or something...

OpenStudy (anonymous):

ya, a vector with length less than 1 will be shorter than unit vector which means unit vector is longer. so false

hartnn (hartnn):

good :)

OpenStudy (08surya):

always in the direction of increasing side

OpenStudy (anonymous):

@08surya didn't understand what you tryin to say

OpenStudy (08surya):

take example|dw:1380463852562:dw| a(p) and a(phi) are unit vectors which r in the direction where ro and phi are increasing

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