JEE Advanced 2020 Full Test 3 Paper 2

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Question : 40 of 54

Marks: +1, -0

If the mapping f(x)=mx+c,m>0 maps [-1,1] onto [0,2] then tan(tan−1‌

1

7

+cot−18+cot−118) is equal to:

f(‌
2
3
)
f(‌
1
3
)
f(‌
−1
3
)
f(‌
−2
3
)

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