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Byju's Answer
Standard XII
Mathematics
Matrix Definition and Representation
Write the ele...
Question
Write the element
a
21
of the matrix
A
=
[
a
i
j
]
2
×
2
whose elements
a
i
j
are given by
a
a
j
=
e
2
i
x
cos
j
x
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Solution
Solution:-
Given that:-
a
i
j
=
e
2
i
x
cos
j
x
To find:-
a
21
=
?
For
a
21
,
i
=
2
j
=
1
∴
a
21
=
e
(
2
×
2
×
x
)
cos
(
1
×
x
)
=
e
4
x
cos
x
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