Update completed_exercise_set1.ipynb

optimization202/Modeling_Session_1/completed_exercise_set1.ipynb

@@ -469,7 +469,13 @@
     "Solve the model again and inspect the solution. Verify by inspection that it satisfies this newly added constraint.\n",
     "\n",
     "Using the properties of logarithms, the constraint can be rewritten as:\n",
-    "$ x_{\\textrm{Baltimore,Indianapolis}}\\geq \\frac 14\\sum_d x_{\\textrm{Baltimore},d}$"
+    "$ x_{\\textrm{Baltimore,Indianapolis}}\\geq \\frac 14\\sum_d x_{\\textrm{Baltimore},d}$\n",
+    "\n",
+    "\\begin{align*}\n",
+    "\\log(\\frac{4 \\cdot x_{\\textrm{Baltimore,Indianapolis}}}{\\sum_d x_{\\textrm{Baltimore},d}})\\normalsize &\\geq 0 \\\\\n",
+    "\\frac{4 \\cdot x_{\\textrm{Baltimore,Indianapolis}}}{\\sum_d x_{\\textrm{Baltimore},d}} &\\geq 1 \\\\\n",
+    "x_{\\textrm{Baltimore,Indianapolis}}&\\geq \\frac 14\\sum_d x_{\\textrm{Baltimore},d}\n",
+    "\\end{align*}"
    ]
   },
   {