Which of the following statements are true, & why?

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A & B are matrices which same dimension. a)(A+B)^2 = (B+A)^2 b)(A+B)^2 = A^2+2AB+B^2 c)(A+B)^2 = A(A+B)+B(A+B) d) (A+B)^2 = (A+B)(B+A) e)(A+B)^2 = A^2+AB+BA+B^2

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