{"isOldForm": false, "must_get_html_from_browser": false, "subparts": [], "configString": " [ap_series([49,77,105,133,161,189]),config_text([\"string(49 , 77 , 105 , 133 , 161 , 189 , ...  )\"]),list([49,77,105,133,161,189])]", "questionString": " [string(),string(49 , 77 , 105 , 133 , 161 , 189 , ...  ), string(Find the general term of the sequence.)]", "hintString": " [string(Find the differnce between successive terms.)]", "answerTypeString": " [answer_types([[string(A),type(continuous(string(Answer = ),input(string(x),type(s_textbox)),input_list(list(string(choose),string(+),string(-),string(/),string(x)),label(l1)),input(string(y),type(s_textbox)),string(x),string(n)))]])]", "solutionString": " [,evaluation_expression(lhs([string(first term (n = 1) 49 = 49),string(second term (n = 2) 77 = 49 + 28),string(third term (n = 3) 105 = 49 + 28 + 28)]),rhs([string(49 = 49 + 28(0)),string(77 = 49 + 28(1)),string(105 = 49 + 28(2))])),evaluation_expression(lhs([string(latex(\\\\therefore) nth term)]),rhs([string(49 + 28(n - 1)),string(49 + 28xn - 28),string(21 + 28n)])),]"}