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Combine linearly dependent vectors to get zero
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Question in Content created by Newcastle University by Newcastle University Mathematics and Statistics

Real numbers $a,\;b,\;c$ and $d$ are such that $a+b+c+d=1$ and for the given vectors $\textbf{v}_1,\;\textbf{v}_2,\;\textbf{v}_3,\;\textbf{v}_4$ $a\textbf{v}_1+b\textbf{v}_2+c\textbf{v}_3+d\textbf{v}_4=\textbf{0}$ . Find $a,\;b,\;c,\;d$ .
Do three given vectors form a spanning set and are they linearly independent?
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Question in Content created by Newcastle University by Newcastle University Mathematics and Statistics

Given the following three vectors $\textbf{v}_1,\;\textbf{v}_2,\;\textbf{v}_3$ Find out whether they are a linearly independent set are not. Also if linearly dependent find the relationship $\textbf{v}_{r}=p\textbf{v}_{s}+q\textbf{v}_{t}$ for suitable $r,\;s,\;t$ and integers $p,\;q$ .