Finding exact value trig expression
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Finding exact value trig expression

[From: ] [author: ] [Date: 12-06-13] [Hit: ]
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arcsin[sin(6pi/7)]

I am confused is the answer pi/7 or 6pi/7? Why?

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6pi/7
Because its an inverse function of that function.

So they cancel each other out

But the actual reference angle is pi/7
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