Question

x-1/1-x is equivalent to?
A:none
B:1
C:-1
D:x

Answer 1

\[\left(\begin{matrix}x-1 \\ 1-x\end{matrix}\right)\]

Answer 2

ok take -1 common from denominator then see what happens !!

Answer 3

x is left

Answer 4

let me give you an example

if we have
\[\Large \frac{x-5}{5-x}\]
taking -1 common from denominator
\[\Large \frac{(x-5)}{-1(x-5)}\]

now since x-5 is in both numerator and denominator they will gets cancelled so.
\[\Large \implies \frac{1}{-1}=-1\]
do the same for your question !!!!!!

Answer 5

so it's one

Answer 6

do it again!!! look at my response again. you are taking -1 common how it can be 1 !!!!

Answer 7

ok is it -1

Answer 8

well done !!!!!
it is -1 you got it.