Let P be a square matrix such that P^2 = I – P. For , , , N, if P^ +P^ = I-29P and P^ -P^ = I-13P, then + + - is equal to

JEE Main 2023 Mathematics question

Let P be a square matrix such that = I – P. For , , , , if and , then is equal to

Answer: (D)

Question ID VK-025654