Discrete Math - Geometric Vectors

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I'm lost!
How do you add the following vectors? Please provide a step by step answer!

1) EA - CB + DB + AD


2) PT - QT + SR - SQ

  • Discrete Math - Geometric Vectors -

    Since vectors have magnitude and direction, a vector like -CB = +BC

    so EA - CB + DB + AD
    = EA + AD + DB + BC
    = EC

    notice I made then terminal point of a vector equal to the initial point of the next vector, so you are "just going" from E to A, then onto D, and then to B and finally from B to C.
    So you have gone from E to C, or the vector EC

    Do the second question the same way

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