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Question

If tan1(a)=π4 then find tan1(a).

A
π4
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B
π4
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C
π3
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D
π3
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Solution

The correct option is B π4
We know that f(x) = tan1(x) is an odd funtion. Then from the property of odd functions we can say
f(x)=f(x)or tan1(x)=tan1(x)tan1(x)=π4 (Given)tan1(x)=tan1(x)=π4

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