Hindi, asked by khehra762, 9 months ago


coso
If A=
sino
sin 0 cos 0
and A(adj A) = kI then k is

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Answers

Answered by bhole11
0

Answer:

ANSWER

A=

cosθ

sinθ

0

−sinθ

cosθ

0

0

0

1

lets write co factor

C

11

+cosθ C

12

=−sinθ C

13

=0

C

21

+sinθ C

22

=cosθ C

23

=0

C

31

=0 C

32

=0 C

33

=1

∴ co factor matrix

=

cosθ

sinθ

0

−sinθ

cosθ

0

0

0

1

∴AdjA= transpose of cofactor matrix

=

cosθ

sinθ

0

−sinθ

cosθ

0

0

0

1

=A

T

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