[線代] 內積
let θ be a fixed real number
[ cosθ] [-sinθ]
x1 = [ sinθ] x2 = [ cosθ]
given a vectory y in R^2
find a,b such that y is a linear combination of ax1+bx2
請問這題要怎麼解呢?
謝謝
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02/13 23:35, , 1F
02/13 23:35, 1F
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