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If vector ,a =b +c , then is it true that |a| =|b|+| c| ? justify your answer .

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asked Jan 24, 2018 in Mathematics by sforrest072 (157,439 points) ● 61 ● 410 ● 947
If vector ,a =b +c , then is it true that |a| =|b|+| c| ? justify your answer .

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answered Jan 24, 2018 by mdsamim (213,225 points) ● 5 ● 10 ● 15
selected Jan 24, 2018 by sforrest072
 
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Also, it is known that the sum of the lengths of any two sides of a triangle is greater than the third side.

Hence, it is not true that. 

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