If a=b then a/2=b/2 pick the correct related statement
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hey mate !! here is your answer...
Step-by-step explanation:
A scalar matrix is a square matrix in which all diagonal elements are equal and non-diagonal elements are zero.
An Identity matrix is a scalar matrix in which diagonal elements are 1.
∴ Every Identity matrix is a scalar matrix.
(A
T
)
T
=A
∴ Transpose of transpose of a matrix gives the matrix itself.
for every square matrix A there exists another matrix B such that AB=I=BA.
iff ∣A∣
=0
i.e iff A is invertible.
Hence, options B and C.
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