{"result":{"text":"f left parenthesis x right parenthesis equals x squared minus sin space x space tan space x space\nf apostrophe left parenthesis x right parenthesis equals 2 x minus cos space x space tan space x minus sin space x space sec squared space x\nequals tan space x open parentheses fraction numerator 2 x over denominator tan begin display style space end style x end fraction minus cos space x minus sec space x close parentheses less than 0\nf left parenthesis 0 right parenthesis equals 0\nf left parenthesis x right parenthesis left parenthesis 0 space i n space t h e space n b d space o f space x space equals space 0. right parenthesis\nleft parenthesis l minus 0 right parenthesis\nbackslash endgathered"},"status":"ok"}