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if sin(alpha+beta)=1 and sin(alpha-beta)...

if `sin(alpha+beta)=1 and sin(alpha-beta)=1/2 " "0lealpha,beta,lepi/2,then` find `tan(alpha+2beta)and tan(2alpha+beta)`

A

1

B

`-1`

C

0

D

`1//2`

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A
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