Question

determinati numarul real m stiind ca f(m)≈1 , unde f:R→R, f(x)≈x-4

Answer 1

f: R -> R, f(x)= x-4
 
 f(m)= m- 4 <=> m-4= 1 => m= 1+4=> m=5
 
 f(5)= 5-4
 f(5)= 1

Answer 2

f(m)= m-4
f(m)=1 de aici m-4 =1  => m=5