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If tan^(-1)(sqrt(1+x^(2))-1)/x=4 then x=...

If `tan^(-1)(sqrt(1+x^(2))-1)/x=4` then x=

A

tan 2

B

tan 4

C

tan (1/4)

D

tan 8

Text Solution

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The correct Answer is:
D
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MCGROW HILL PUBLICATION-INVERSE TRIGONOMETRIC FUNCTIONS -SOLVED EXAMPLES (LEVEL 1 SINGLE CORRECT ANSWER TYPE QUESTIONS)
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