# TheClock

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bio website location Canada age 26 member for 1 year, 5 months seen Feb 2 at 8:57 profile views 140

# 136 Actions

 Feb2 accepted Prove that $g_1=2\sin(x)+\cos(x)$, $g_2=3\cos(x)$ is a basis in $V$ Feb2 comment Prove that $g_1=2\sin(x)+\cos(x)$, $g_2=3\cos(x)$ is a basis in $V$ Thank you! I was onto that type of comparison, but I was not sure if that completed the proof. Feb2 asked Prove that $g_1=2\sin(x)+\cos(x)$, $g_2=3\cos(x)$ is a basis in $V$ Feb1 accepted Decide a subspace Feb1 comment Decide a subspace Thank you Paul, that made it! Feb1 revised Decide a subspace added 8 characters in body Feb1 comment Decide a subspace Thanks Paul. But how do you think when you set up the span{${x, x^2, x^3}$}? Because to me I cannot find a good way to think when I am supposed to find a base in this case. Feb1 asked Decide a subspace Jan28 accepted Check if a matrix is a linear combination Jan28 comment Check if a matrix is a linear combination Thank you, that clears it up. Jan28 comment Check if a matrix is a linear combination However, it seems pretty obvious that it is so when I look at @AnonSubmitter85's answer below. Jan28 revised Check if a matrix is a linear combination added 2 characters in body Jan28 comment Check if a matrix is a linear combination @JoseAntonio: I don't think we have been going through what a 'map' or an 'isomorphism' are, it sounds unfamiliar to me. Jan28 comment Check if a matrix is a linear combination @JoseAntonio: How does that follow to $(a,b,c,d)^T$? Jan28 revised Check if a matrix is a linear combination added 2 characters in body Jan28 comment Check if a matrix is a linear combination @Deven Ware: Yeah, I saw that now. However, I do not want to do it by inspection (it's a good idea when one is used to calculate these things), but for now I think I will go with David's approach. Thanks anyway. Jan28 comment Check if a matrix is a linear combination @DavidPeterson: How do I succeed converting to column vectors? Jan28 revised Check if a matrix is a linear combination edited body Jan28 asked Check if a matrix is a linear combination Jan28 accepted Determine if this set is a subspace of $P_3$