KEAM 2010 Math Paper

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Question : 25 of 120
 
Marks: +1, -0
Let f(x)=‌
(ex−1)2
sin(‌
x
a
)
‌log
(1+‌
x
4
)
for x≠0 and f(0)=12. If f is continuous at x=0, then the value of a is equal to
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