For items $1-6$ refer to the given below.Q $=21-5$kR is a vector from A$(1,-6,-5)$ to B$(-2,-5,4).$Sis a vector from C$(1,2,-5)$ to D$(-5,-4,9).$T is a position vector to E$(1,-2,3)1.($Qx R$)-($S xT$)2.$ Angle between vector R and T$\mathrm{.}3.$ Unit vector perpendicular to vector Q and S$4.$ The component of T along Q$\mathrm{.}5.$ The projections of R along ay$\mathrm{.}6.$ Area bounded by points A$,$ B$,$ and C$.$