SOLUTION: If Cos=k,express the following in terms of k,without using a calculator (1) Sin(108) (2) Cos(-36) Please help me.

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Question 1140831: If Cos=k,express the following in terms of k,without using a calculator
(1) Sin(108)
(2) Cos(-36)
Please help me.

Answer by ikleyn(52860)   (Show Source): You can put this solution on YOUR website!
.

You missed something crucially important in the condition.

Double check with your source.



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