The frame is loaded by a force $F$ and a couple $M$ and is supported by $2$ pins at A and $C.$ Determine the components of the reaction at A with respect to $x-y$ coordinate system.

Given F $=700$ N; M $=840$ N$.$m; $a=0\mathrm{.}6m$;$b=0\mathrm{.}9m$ and $c=1\mathrm{.}2m.$

$Ax=??$N

$Ay=??$N