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###### Deepak Patra posted an Question
December 14, 2021 • 12:33 pm 30 points
• IIT JAM
• Mathematics (MA)

## Let a be a 5 x 5 matrix with real entries such that the sum of the entries in each row of a is 1 then the sum of all entries in a3 is (b) 15 (a) 3 o(c) 5 (d) 12

Let A be a 5 x 5 matrix with real entries such that the sum of the entries in each row of A is 1 Then the sum of all entries in A3 is (B) 15 (A) 3 o(C) 5 (D) 125

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• ##### Navdeep goyal 1

C check attachment

could you please explain the formula?? that the formula is formed???

check example sum of each row is lemda ² sum of all entry 2*√²

understand

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