f(8)=3/8=0,375=0,38
f(-4)=-3/4=-0,75
f(8)+f(4)=0,38-0,75=-0,37
f(x) = 3 / x ;
f(8) = 3 / 8 = 0.375 = 0.38 ; f(-4) = 3 / -4 = -0.75 ,
f(8) + f(-4) = 0.38 + (-0.75) = 0.38 - 0.75 = -0.37
ответ: -0.37 .
f(8)=3/8=0,375=0,38
f(-4)=-3/4=-0,75
f(8)+f(4)=0,38-0,75=-0,37
f(x) = 3 / x ;
f(8) = 3 / 8 = 0.375 = 0.38 ; f(-4) = 3 / -4 = -0.75 ,
f(8) + f(-4) = 0.38 + (-0.75) = 0.38 - 0.75 = -0.37
ответ: -0.37 .