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Find the value of the expression: si...

Find the value of the expression: `sin(2\ tan^(-1)1/3)+cos(tan^(-1)2sqrt(2))`

A

`14/15`

B

`3/4`

C

`(2sqrt2)/7`

D

`(2sqrt2)/15`

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The correct Answer is:
A
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AAKASH INSTITUTE ENGLISH-INVERSE TRIGONOMETRIC FUNCTIONS-ASSIGNMENT (SECTION - A)(OBJECTIVE TYPE QUESTIONS (ONE OPTION IS CORRECT))
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  8. If sin{cot^-1(x+1)}="cos"(tan^(-1)x), then find x

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  10. if tan^(-1)(1/x)+cos^(-1)(2/sqrt5)=pi/4 then x equals

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