👤

daca a= -1 /4 numarul /2a -3 /+/2a-1/ este egal cu.................................


Răspuns :

a=-1/4
2a-3=2×(-1/4)-3=-1/2-3=-7/2           
2a-1=2×(-1/4)-1=-1/2-1=-3/2
I2a-3I+I2a-1I=I-7/2I+I-3/2I=7/2+3/2=10/2=5