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Deimantas
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Homework Statement
It roughly translates to this: "Define linear dependency of vectors". I hope it makes any sense.
"1, x, sinx; x is defined (-∞, +∞)."
Homework Equations
The Attempt at a Solution
I believe that to solve this problem, I have to turn these vectors into a quadratic polynomial, something like this: "t^2+t+1". However I have no idea what substitution should I use in order to turn it into a polynomial. I checked the common trig substitutions and didn't find anything helpful.