Just as you can enter a number by giving an equation that reduces to it, WeBWorK

Question

Just as you can enter a number by giving an equation that reduces to it, WeBWorK allows you to enter points and vectors by giving equations for the individual coordinates, or by using a vector-valued equation that reduces to your answer. For example,

<1-(-3),2-sqrt(4),6/2>    and    [1-(-3)]i + [2-sqrt(4)]j + (6/2)k

both represent the vector ?4,0,3?, while <1,0,-1> + <2,-2,3> could be used to answer a question that asks for the vector ?3,?2,2?.

Write ?2,1,6? as a sum of two vectors:

Write 4,-9,-1 as a sum of two vectors: .

Explanation / Answer

?2,1,6? = ?1,1,1? + ?1,0,5?

?4,-9,-1? = ?1,2,0? + ?3,-11,-1?

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