Mathematics II20765 marksNumerical: change of coordinate matrixChange of basis
Let B=b1, b2 and C=c1, c2 be bases for a vector space V, and suppose b1 = -c1 + 4c2 and b2 = 5c1 - 3c2. Find the change of coordinate matrix for the vector space and find [x]C for x = 5b1 + 3b2.
Let $B={b_1, b_2}$ and $C={c_1, c_2}$ be bases for a vector space $V$, and suppose $b_1 = -c_1 + 4c_2$ and $b_2 = 5c_1 - 3c_2$. Find the change of coordinate matrix for the vector space and find $[x]_C$ for $x = 5b_1 + 3b_2$. [5]
- Bases $B={b1,b2}$, $C={c1,c2}$ for vector space $V$ - $b1=-c1+4c2$ - $b2=5c1-3c2$ - $x=5b1+3b2$ --- $$[b1]C=\begin{bmatrix}-1\4\end{bmatrix},\qquad [b2]C=\begin{bmatrix}5\-3\end{bmatrix}$$ $$P{C\leftarrow B}=\big[,[b1]C\ \ [b2]C,\big]=\begin{bmatrix}-1 & 5\ 4 & -3\end{bmatrix}$$ This s...