Find value of T with vectors A and B linearly independant

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SUMMARY

The discussion focuses on determining the values of t for which the vectors c = t^2a + b and d = (2t-3)(a-b) remain linearly independent, given that vectors a and b are linearly independent. The key approach involves analyzing the matrix [[t^2, 1], [2t-3, -2t+3]] to ascertain its nonsingularity, which directly correlates with the linear independence of c and d. Additionally, a related problem is presented, demonstrating that the vectors a-2b-c, 2a+b, and a+b+c are also linearly independent when a, b, and c are linearly independent.

PREREQUISITES
  • Understanding of linear independence in vector spaces
  • Familiarity with matrix theory and nonsingular matrices
  • Knowledge of vector operations and scalar multiplication
  • Basic concepts of linear transformations
NEXT STEPS
  • Study the properties of nonsingular matrices in linear algebra
  • Learn about the implications of linear independence in higher dimensions
  • Explore the concept of basis in vector spaces
  • Investigate the relationship between linear transformations and matrix representations
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Students and educators in linear algebra, mathematicians exploring vector spaces, and anyone seeking to deepen their understanding of linear independence and matrix theory.

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Homework Statement



The vectors a, b are linearly independent. For what values of t are = t^2a + b and d = (2t-3)(a-b) linearly independent.


also another similar question

If the vectors a, b , c are linearly independent, show that a-2b-c, 2a+b, and a+b+c are also linearly independent

Homework Equations





The Attempt at a Solution


for first question

i expanded the (2t-3)(a-b) and then grouped terms. Then i tried finding scalar multiples by solving for t in one eqn and plugging into another, however i failed miserably :(
 
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If you think of a and b as the basis of the vector space spanned by a and b then the matrix [[t^2,1],[2t-3,-2t+3]] expresses the linear transformation into the space spanned by c and d. If that matrix is nonsingular then c and d are linearly independent. I'm having trouble thinking of a simpler way to phrase it. Does that make sense to you?
 

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