if A=[3 0 1 -1 1 2 - Maths - Matrices

Question

if A=[3 0 1
-1 1 2
-2 5 1]
find A-1
pls answer "this " question
answer immdediatly!!!

Rishabh Mittal · Accepted Answer

Dear Student ,

Please find below the solution to the asked query :

A=IA301-112-251 = 100010001 AApply R1 → R1+R3152-112-251 = 101010001 AApply R2 → R2+R1152064-251 = 101111001 AApply R3→R3+2R11520640155 = 101111203 AApply R1 → R1-13 R310130640155 = 1300111203 AApply R2 →16 R2101301230155 = 1300161616203 AApply R3 → R3-15 R21013012300-5 = 1300161616-12-5212 AApply R1 → R1 +115 R3100012300-5 = 310-16130161616-12-5212 AApply R2 → R2+215 R310001000-5 = 310-16130110-16730-12-5212 AApply R3 → -15 R3100010001 = 310-16130110-1673011012-110 A⇒ A-1= 310-16130110-1673011012-110       ANS
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if A=[3 0 1 -1 1 2 -2 5 1] find A-1 pls answer "this " question answer immdediatly!!!

if A=[3 0 1
-1 1 2
-2 5 1]
find A^-1
pls answer "this " question
answer immdediatly!!!