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What is vector w if vector v1=2i-j and vector v2=i+3j? vector w=2v1-v2

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yapayapa | (Level 2) Honors

Posted August 28, 2013 at 2:24 PM via web

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What is vector w if vector v1=2i-j and vector v2=i+3j?

vector w=2v1-v2

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justaguide | College Teacher | (Level 2) Distinguished Educator

Posted August 28, 2013 at 2:27 PM (Answer #1)

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The vector v1 = 2i - j, v2 = i + 3j. Vector w = 2*v1 - v2

w = 2*(2i - j) - (i + 3j)

= 4i - 2j - i - 3j

= 3i - 5j

The required vector w is 3i - 5j

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