If P is a square matrix with P 2 = P and if I is the unit matrix of the same order as of P then ( P + I ) 4 =

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If $P$ is a square matrix with $P^2=P$ and if $I$ is the unit matrix of the same order as of $P$ then $(P+I)^4=$

MathematicsMatricesAP EAMCETAP EAMCET 2017 (25 Apr Shift 1)

Options:

A $I+9 P$
B $I+11 P$
C $I+13 P$
D $I+15 P$

Solution:

1125 Upvotes Verified Answer

The correct answer is: $I+15 P$

No solution. Refer to answer key.

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