Question

Dacă a/3-b/8+c/11=0,91,sa se calculeze valoarea expresiei:
E=c/22*200/91+b/8*100/-91-(-100/91)*a/3-1

Answer 1

a/3-b/8+c/11=0,91=91/100

E=c/22*200/91+b/8*100/-91-(-100/91)*a/3-1

dam factor comun pe 100/91

deci E=100/91(2c/22-b/8+a/3) -1

E= 100/91(c/11-b/8+a/3) -1

E= 100/91(a/3-b/8+c/11) -1

E=100/91 * 91/100 -1

E=1-1

E=0