How to prove IDEMPOTENT Matrices

Subscribe to the channel here: https://youtube.com/@iqinitiative Email: iqinitiative2020@gmail.com Facebook: https://www.facebook.com/profile.php?id=100075842837411&mibextid=ZbWKwL Tweeter: https://twitter.com/IQ_Initiative?t=bdygiJlluZqa_1CxLEuEJA&s=09 ============================================ Idempotent matrix is a square matrix which when multiplied by itself, gives back the same matrix. A matrix M is said to be an idempotent matrix if M2 = M. Further every identity matrix can be termed as an idempotent matrix. The idempotent matrix is a singular matrix and can have non-zero elements.