code: def _check_divided(null, null_ans):
      """Check the divided answer."""
      null = _to_DM(null, null_ans)
      null_ans_norm = _divide_last(null_ans)
      assert null == null_ans_norm
  
file_path: sympy/sympy/polys/matrices/tests/test_nullspace.py
imports: from sympy import ZZ, Matrix
  from sympy.polys.matrices import DM, DomainMatrix
  from sympy.polys.matrices.ddm import DDM
  from sympy.polys.matrices.sdm import SDM
  import pytest
label_desc: Use image node_id 4 for calling a global function with example usage: _check_divided(null, null_ans) without return types