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How do i decide which reference triangle to use for sin1 (sin 3pi/10)?
 one year ago
 one year ago
How do i decide which reference triangle to use for sin1 (sin 3pi/10)?
 one year ago
 one year ago

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NoelGrecoBest ResponseYou've already chosen the best response.0
Do you mean\[\sin^{1} (\sin \frac{ \pi }{ 10 })\]?
 one year ago

NoelGrecoBest ResponseYou've already chosen the best response.0
First, make sure that the angle is in the domain of the inverse sine function [2pi,2pi]. Then remember that the sin generates a number, and inverse sin generates an angle  in this case the same angle you took the sin of.
 one year ago
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