Let `vecr = (veca xx vecb)sinx + (vecb xx vecc)cosy+(vecc xx veca)`, where `veca,vecb` and `vecc` are non-zero non-coplanar vectors, If `vecr` is orthogonal to `3veca + 5vecb+2vecc`, then the value of `sec^(2)y+"cosec"^(2)x+secy" cosec "x` is