# cos(?)=-squareroot2/5, ?/2<?<? whats the sin(2?) and cos(2?)

Asked By eva On 10/03/2017 01:34

## Answers

I would love to help you on this! However, I'm not sure what the ? mean in this case. Also, are you needing it to be evaluated or just left in terms of sine and cosine?
Thank you!
Joyce Estes

Answered On 10/06/2017 09:48

Answered On 10/06/2017 09:48

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