Case II: When roots of AE are same (repeated): Suppose AE f(m) =0 has two equal roots (m, = m) m, m m m4 , m, y= (C, +C,X)e"* + C,e"* +... + C,e* y = +CX + Cx )

Case II: When roots of AE are same (repeated): Suppose AE f(m) =0 has two equal roots (m, = m) m, m m m4 , m, y= (C, +C,X)e"* + C,e"* +... + C,e* y = +CX + Cx )emx + C^e4K +... + C,e m In this case the solution will be If three roots of AE aree equal say m, = m, = m,, then +C,ex .is the last statement for the three roots be equal is true ,or in the material there is misprint?