(\(\frac{2}{11.13}\)+\(\frac{2}{13.15} +\frac{2}{15.17}+...+\frac{2}{19.21}\)).462-[2,04:(x+1,05)]:0,12=19. Tìm x
(2/11.13+2/13.15+.......2/19.21).462-17/x+1,05=19
(2/11.13 + 2/13.15 + 2/15.17 + 2/17.19 + 2/19.21).462-x=19
(2/11.13+2/13.15+....+2/19.21).462-(0,04:(x+1,05)):0,12=19
(2/11.13+2/13.15+.......+2/19.21).462 -{2,04:(x+1,05):0,12=19
Tim x
(2/11.13+2/13.15+...+2/19.21).462-[2,04:(x+1,05)]:0,12=19
tìm X biết
\(\left(\frac{x}{11.13}+\frac{2}{13.15}+...+\frac{2}{19.21}\right)-462-\left[0.04:\left(x+1,05\right)\right]:0,12=19\)
Tìm x, biết:
\(\left(\frac{2}{11.13}+\frac{2}{13.15}+...+\frac{2}{19.21}\right).462-\left[2,04:\left(x+1,05\right)\right]:0,12=19\)