Question

1/2 x 2/3 x 3/4 x...x 29/30: (- 193/60), va rog cat mai rapid :)

Answer 1

La înmulțire se reduc pana la 30 și ramane1/30:(-193)/60=1/30*60 /(-193=-2/193

Answer 2

$\frac{1}{2} x \frac{2}{3} x \frac{3}{4} x...x \frac{29}{30} = \frac{1x2x3x4x5x...x29}{ 2x3x4x5x...x29x30} = \frac{1}{30}$


[tex] \frac{1}{30} :(- \frac{193}{60} )= \frac{1}{30} x(- \frac{60}{193} )= -\frac{2}{193} [/tex]