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If "Tan"^(-1)1/(1+2x)+"Tan"^(-1)1/(4x+1)...

If `"Tan"^(-1)1/(1+2x)+"Tan"^(-1)1/(4x+1)" = Tan"^(-1)2/(x^(2))` then `x(x!=0)=`

A

`1`

B

3

C

0

D

`2//3`

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-INVERSE TRIGONOMETRIC FUNCTIONS-EXERCISE-II
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  19. If tan^(-1)x,tan^(-1)y,tan^(-1)z are in A.P then (2y)/(1-y^(2))=

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  20. The number of solution of (x,y) so that sin^(-1)x+sin^(-1)y=(2pi)/3,...

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