Merge pull request #4 from virtual-labs/dev

Update pretest.json

experiment/pretest.json

@@ -2,7 +2,7 @@
     "version": 2.0,
     "questions": [
       {
-        "question": "In the following questions, wherever required, use the Galois fields $$\\mathbb{F}_{2^{3}} = \\{ 0, 1, \\alpha, \\alpha^{2}, \\alpha^{3} = 1+\\alpha, \\alpha^{4} = \\alpha+\\alpha^{2}, \\alpha^{5}=1+\\alpha+\\alpha^{2}, \\alpha^{6}= 1+\\alpha^{2}  \\} \\, \\text{and} $$ $$ \\mathbb{F}_{2^{4}} = \\{ & 0, 1, \\alpha, \\alpha^{2}, \\alpha^{3}, \\alpha^{4} = 1+\\alpha, \\alpha^{5} = \\alpha+\\alpha^{2}, \\alpha^{6}=\\alpha^{2}+\\alpha^{3}, \\alpha^{7}= 1+\\alpha+\\alpha^{3}, \\\\ & \\alpha^{8} = 1+\\alpha^{2}, \\alpha^{9} =\\alpha+\\alpha^{3}, \\alpha^{10}=1+\\alpha+\\alpha^{2}, \\alpha^{11}=\\alpha+\\alpha^{2}+\\alpha^{3},\\\\ & \\alpha^{12}=1+\\alpha+\\alpha^{2}+\\alpha^{3}, \\alpha^{13}=1+\\alpha^{2}+\\alpha^{3}, \\alpha^{14} = 1+\\alpha^{3} \\}. \\\\ \\\\ 1. Which one of the following cannot be a binary primitive BCH code of the length?$$",
+        "question": "In the following questions, wherever required, use the Galois fields $$\\mathbb{F}_{2^{3}} = \\{ 0, 1, \\alpha, \\alpha^{2}, \\alpha^{3} = 1+\\alpha, \\alpha^{4} = \\alpha+\\alpha^{2}, \\alpha^{5}=1+\\alpha+\\alpha^{2}, \\alpha^{6}= 1+\\alpha^{2}  \\} \\, \\text{and}$$ $$ \\begin{align*} \\mathbb{F}_{2^{4}} = \\{ & 0, 1, \\alpha, \\alpha^{2}, \\alpha^{3}, \\alpha^{4} = 1+\\alpha, \\alpha^{5} = \\alpha+\\alpha^{2}, \\alpha^{6}=\\alpha^{2}+\\alpha^{3}, \\alpha^{7}= 1+\\alpha+\\alpha^{3}, \\\\ & \\alpha^{8} = 1+\\alpha^{2}, \\alpha^{9} =\\alpha+\\alpha^{3}, \\alpha^{10}=1+\\alpha+\\alpha^{2}, \\alpha^{11}=\\alpha+\\alpha^{2}+\\alpha^{3},\\\\ & \\alpha^{12}=1+\\alpha+\\alpha^{2}+\\alpha^{3}, \\alpha^{13}=1+\\alpha^{2}+\\alpha^{3}, \\alpha^{14} = 1+\\alpha^{3} \\}. \\end{align*} $$ 1. Which one of the following cannot be a binary primitive BCH code of the length?$$",
         "answers": {
           "a": "$n=127$",
           "b": "$n=63$",