In the space R^4, two subspaces are given: U={(a,b,c,d)∈R^4 ∣ a+b=0, b+c=0, c+d=0} and V={(a,b,c,d)∈R^4 ∣ a+c=0, a+d=0}. What is the dimension of the intersection of U and V?

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.7: Distinguishable Permutations And Combinations
Problem 21E
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In the space R^4, two subspaces are given: U={(a,b,c,d)∈R^4 ∣ a+b=0, b+c=0, c+d=0} and V={(a,b,c,d)∈R^4 ∣ a+c=0, a+d=0}. What is the dimension of the intersection of U and V?

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