Question

Let a=⟨1,3,1⟩ and b=⟨2,−1,−4⟩ Show that there are scalars s and t so that
sa+tb=⟨4,−16,−20⟩

You might want to sketch the vectors to get some intuition.

Where do I begin and end with this problem?

Thank you in advance for your help.

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