Which of the following is/are a rational...

Which of the following is/are a rational number ?

`sin(tan^(-1)3+tan^(-1)""1/3)`

`cos(pi/2-sin^(-1)""3/4)`

`log_(2)(sin(1/4sin^(-1)""sqrt(63)/8))`

`tan(1/2cos^(-1)""sqrt(5)/3)`

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The correct Answer is:

A, B, C

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Which of the following is a rational number?

`sqrt3`

`sqrt5`

`sqrt7`

`sqrt9`

`sin(tan^(-1)3+tan^(-1)""1/3)`

`cos(pi/2-sin^(-1)""3/4)`

`log_(2)(sin(1/4sin^(-1)""sqrt(63)/8))`

`tan(1/2cos^(-1)""sqrt(5)/3)`

`log_(10)3`

`5.bar(23)`

`123.123`

`10/19`