... phơng trình nào sau đây ?a. EMBED Equation.DSMT4 2, 19 2,17 5,358 100y xx y+ =+ = b. EMBED Equation.DSMT4 1,1 1, 08 2,171, 09 1, 09 2,18y xx y+ =+ =B338 c. EMBED Equation.DSMT4 ... sau đây :a. EMBED Equation.DSMT4 6 9 46 4 10x yx y− =− = b. EMBED Equation.DSMT4 5 5 9 2 3 4x yx y− =− =c. EMBED Equation.DSMT4 5 5 9 3 2 5x yx y− =− = d. ... Equation.DSMT4 3 3 13 4 5a ba b− =+ = c. EMBED Equation.DSMT4 27 9 7ba== d. EMBED Equation.DSMT4 7 9 72xy==Đáp án : b80Cho hệ PT EMBED Equation.DSMT4 1 122...