Răspunsuri

  • Utilizator Brainly
2014-01-29T19:12:10+02:00
A=3b/4
c=5b/4
9b²/16+b²+25b²/16=200⇒9b²+16b²+25b²=3200
50b²=3200⇒b²=64⇒b=8
a=6
c=10
2014-01-29T19:14:30+02:00
A²+b²+c²=200
a/3=b/4=c/5
a/3=b/4⇒a=3b/4
b/4=c/5⇒c=5b/4
(3b/4)²+b²+(5b/4)²=200
9b²/16+b²+25b²/16=200
9b²+16b²+25b²=3200
50b²=3200
b²=64
b=8
a=3b/4=6
c=5b/4=10


atentie ce -ai facut cu 16 de la numitor?unde a disparut?
am gresit....din neatentier