Question

Aflati x , y, z , t care sunt invers proportionale cu 2 la puterea 1 , 2 la puterea 2 , 2 la puterea 3 , 2 la puterea 4 ce satisfac relatia 16x – 4y +2z –t =8

Answer 1

x/2=y/4=z/8=t/16=k
x=2k
y=4k
z=8k
t=16k
16x-4y+2z-t=8
32k-16k+16k-16k=8
32k-16k=16k=8=>k=1/2;
x=1
y=2
z=4
t=8