Question

Calculati in modul cel mai rational:
a) -38pe11 + 11pe8 + 17pe6 - 50pe11
b) -1.23 + 2.14 + 7.38 - 5.77 + 1.62
c) -9.39 + 0.74 - 10.61 +3.26 + 6.25

Answer 1

a) -38/11 + 11/8 + 17/6 - 50/11=-88/11+11/8+17/6=-2112/264+363/264+748/264=-1001/264=-3.791(6)



b) -1.23 + 2.14 + 7.38 - 5.77 + 1.62=0.91+7.38-5.77+1.62=8.29-5.77+1.62=2.52+1.62=4.14




c) -9.39 + 0.74 - 10.61 +3.26 + 6.25=-8.65-10.61+3.26+6.25=-19.26+3.26+6.25=-16+6.25=-9.75