DoneRight: Solution: Exercises 3B-04: Update(1)

ceciliachan1979 · Sep 16, 2024 · a647563 · a647563
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diff --git a/Books/DoneRight/Chapter03/Ex3B/ex04.gapry.tex b/Books/DoneRight/Chapter03/Ex3B/ex04.gapry.tex
@@ -19,7 +19,7 @@ \subsubsection*{Exercise 04 (Gapry)}
 
 Again, by $\text{Fundamental Theorem of Linear Maps}$, we know 
 \[
-\dim(W_1 + W_2) = \dim(\text{null } (W_1 + W_2)) + \dim(\text{range } (W_1 + W_2)) = 5 
+\dim(\mathbb{R}^5) = \dim(\text{null } (W_1 + W_2)) + \dim(\text{range } (W_1 + W_2)) = 5 
 \]
 
 Also, we know the