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3 years ago

Find the inverse of {(4, -1), (3, -2), (6, 9), (8, 5)}.

Mathematics

1 answer:

katen-ka-za [31]3 years ago

6 0

Answer:

A∣=3(8−7)+1(−2−4)=3−6=−3

co-factor matrix =

⎣

⎢

⎡

−1

−4

−11

−6

⎦

⎥

⎤

Adj.A=

⎣

⎢

⎡

−1

−4

−11

−6

⎦

⎥

⎤

−1

∣A∣

Adj.A=

−1

⎣

⎢

⎡

−1

−4

−11

−6

⎦

⎥

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