Biomedical Engineering > GATE 2026 > Linear Algebra
An invertible n Γ— n matrix P satisfies P3 = I, where I is the identity matrix of size n. Which one of the following options is true?
A
P5 = P
B
P5 = Pβˆ’1
C
P4 = Pβˆ’1
D
P4 = P2

Correct : b

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