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The value of (tan^(-1) ((1)/(2)) + tan^(...

The value of `(tan^(-1) ((1)/(2)) + tan^(-1) ((1)/(3)))=`

A

`(2pi)/(3)`

B

`(pi)/(2)`

C

`tan^(-1) ((5)/(6))`

D

`(pi)/(4)`

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