TS EAMCET 4-Aug-2021 Shift 2 Question Paper

Section: Mathematics

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Question : 67 of 160

Marks: +1, -0

If f(x) = Tan−1(

√1+x−√1−x

√1+x+√1−x

) then

Lt

x→

1

2

2[f(x)−f(

1

2

)]

2x−1

1
√2
√3
2
√2
√3
1
√3

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