If 
find a matrix C such that 3A + 5B + 2C is a null matrix.
Given that:
3A + 5B + 2C = O = null matrix
C = ?
As, 
⇒ 
⇒ 
∴ 2C = 
⇒ 2C = 
∴ C = 
…ans
39
If find a matrix C such that 3A + 5B + 2C is a null matrix.
Given that:
3A + 5B + 2C = O = null matrix
C = ?
As,
⇒
⇒
∴ 2C =
⇒ 2C =
∴ C = …ans