Tuesday, August 13, 2013

a = 6i + 9j |b| = 5 Find the greatest and least possible values of |a+b|

abs%28a%29=sqrt%28+6%5E2+%2B+9%5E2%29=3sqrt%2813%29%0D%0A 

therefore 
%0D%0A5-3sqrt%2813%29%3C=abs%28a%2Bb%29%3C=5%2B3sqrt%2813%29%0D%0A 

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