0 votes 0 votes A=[1 2 3 1 5 1 3 2 1] The eigen value of matrix A are equal to roots of a cubic equation x3 + bx2 + cx + d = 0, the value of b – c + d = __________. cse23 asked Jan 22, 2017 cse23 368 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
1 votes 1 votes Just expand | A - $\lambda$.I | = 0 you will get: $\lambda$3 + (- 7).$\lambda$2 + (-2).$\lambda$ + (-32) = 0 Compare this with given equation: b=-7, c=-2, d=-32 Thus, b-c+d = -7 + 2 - 32 = -37 Sushant Gokhale answered Jan 24, 2017 Sushant Gokhale comment Share Follow See 1 comment See all 1 1 comment reply S Ram commented Mar 20, 2021 reply Follow Share Your calculation is wrong. its 32 not -32. Answer will be different 0 votes 0 votes Please log in or register to add a comment.