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