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If A,B,C are acute angles , tan A=1/2 , ...

If A,B,C are acute angles , `tan A=1/2 , tan B=1//5 , tan C=1//8 , " then " A+B+C=`

A

`pi//2`

B

`pi//3`

C

`pi//4`

D

`pi//5`

Text Solution

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The correct Answer is:
C
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DIPTI PUBLICATION ( AP EAMET)-TRIGONOMETRIC RATIOS AND IDENTITIES -EXERCISE 1 B ( COMPOUNDS ANGLES )
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