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(10 pts) 3. Let 0-3 8 A= -3 5 - 1 2 -5 Solve the equation (find the general solution) for Ax-2x. cos e 2-sin -cos e 2+ sin e
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solution: 3 ro - 3 let A=11 -3 5 l we have to solve the equation for An=-26 AM -2 . A Ax+2* = 0. (A +21) * = o., where I is iSubtract row t from rowa (Rz = R2-R, ) . 1 -/ Yion 1- 2 -31 01 Add row a to row 3 ri -312 4:07 (R.3= R3tR): to row t Add rowsolution 4 we have to find det (B) and the te of b, where e 12-sino -oxo) l-conce 2+ since det (B) 2line -001 1 - Cance 24 si

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