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_______________
______
Option
(3)
______
_______________
step-by-step explanation:
First of all,
let,
ax + b = t
on differentiation of both sides wrt x,
we get,
=> adx = dt
=> dx = dt/a
Now,
putting this value in the question,
and transforming,
we get,
integrated part in the form of ln a
further,
putting the limiting value,
and,
simplifying the logarithmic terms,
we get,
the result as
Hence,
Option (3) is correct.
Note :-
see the aboce attachment.
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