Question

Solve the marked one .... Options are there for convenience ...

Answer 1

I think the answer is option b....

Answer 2

$\huge\boxed{\texttt{\fcolorbox{Red}{aqua}{Hello Friend}}}$

Here is your answer

If (a , b) = b/a
then (a/b , b/a) =
$= \frac{ \frac{b}{a} }{ \frac{a}{b} } \\ = \frac{b}{a} \times \frac{b}{a} \\ = \frac{b {}^{2} }{a {}^{2} }$
Hope it helps you