JEE Advanced 2020 Full Test 4 Paper 1

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Question : 39 of 54

Marks: +1, -0

If α is a root of x2+ax+1=0, then

lim

x→1∕α

‌

sin(x2+ax+1)

(αx−1)

is equal to

2aα
aα2
‌
1−α2
α2
does not exist

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