A Note On The Proofs Of Cramer’s Formula


  • Njoku, Kevin Ndubuisi Chikezie Imo State University, Imo State, Nigeria.
  • Okoli, Odilichukwu Christian Chukwuemeka Odumegwu Ojukwu University, Anambra State, Nigeria.


Cramer’s method, Determinant, system of linear equations, modify Cramer’s method


Communication in Physical Sciences, 2024, 11(1): 127-135

Authors: Njoku, Kevin Ndubuisi Chikezie* and Okoli, Odilichukwu Christian.

Received: 20 December 2023/Accepted: 28 February 2024

The work of Gabriel Cramer (1704-1752) that yielded the formula for solving an arbitrary number of unknown in a square linear system of equations has witnessed in the recent past, several methods of proofs regardless of the supposed high computational cost. It is our purpose in this research to proffer an alternative method of proof to Cramer’s formula for solving square linear system of equations


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Author Biographies

Njoku, Kevin Ndubuisi Chikezie, Imo State University, Imo State, Nigeria.

Department of Mathematics

Okoli, Odilichukwu Christian, Chukwuemeka Odumegwu Ojukwu University, Anambra State, Nigeria.

Department of Mathematics


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