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Byju's Answer
Standard XII
Mathematics
Definition of Function
If 6x-6x-3=...
Question
If
6
x
−
6
x
−
3
=
7740
, then
x
x
=
A
7796
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B
243
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C
3125
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D
46656
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Solution
The correct option is
C
3125
6
x
−
6
x
−
3
=
7740
⇒
6
x
−
6
x
6
3
=
7740
⇒
6
x
(
1
−
1
216
)
=
7740
⇒
6
x
×
215
216
=
7740
⇒
6
x
=
7740
×
216
215
36
×
216
=
6
5
⇒
x
=
5
∴
x
x
=
5
5
=
3125
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0
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