

InterviewSolution
Saved Bookmarks
1. |
Let `2f(x^2)+3f(11x^2)=x^2-1` for all `x in R=[0],` Then `f(x)` equals |
Answer» `2f(x^2)+3(f(1/x^2)=x^-1` replacing `x^2->x` `2f(x)+3f(1/x)=x-1-(1)` replacing`1/x->x` `2f(1/x)+3f(x)=1/x-1-(2)` from equation 1 and 2 `-5f(x)=(2x^2-3+x)/x` `5f(x)=(3-x-2x^2)/x` `f(x)=(3-x-2x^2)/(5x)`. |
|