----- Nội dung dịch tự động từ ảnh ----- NORM MATH FRAC √√√2x²-√√98=0 2:58 SHIFT ALPHA SOLVE = d/dx CALC Sdx ab/c+R ³√ mod x³ 8 2 RCL (-) STO CLRv i Cot CONST Σ 7 MATRIX [] 4 STAT 1 0 O III ENG 5 CMPLX x² хо Log Ln a FACT b Abs C Sin-1 d Cos-1 e Tan-1 f Sin 2 30 hyp % Cot-1 COPY PASTE Ran# RanInt CONV Limit 00 8 VECTOR + GRA MORE GRAPH 9 ↑ I TT 6 DISTR 3 ) X= x=-(√√7) x=√√7 X e MODE A X-1 10x X! DEL Cos Tan a/b-ab/c y M- m S=D X FUNC HELP nPr GCD nCr 2nd Σ Π Logax + PreAns Exp Ans M+ CLR ALL AC ÷ Pol Ceil Rec Floor LCM History ||