MathCastle
TrigonometrySuperchallenge

Trigonometry · Superchallenge problem

Find scalars ss and tt such that s⟨2,1⟩+t⟨1,−3⟩=⟨5,−8⟩s\langle 2,1\rangle+t\langle 1,-3\rangle=\langle 5,-8\rangle.

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