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10/16/2013 4:08:06 PM
16
How do sin(x) and cos(x) work?
When I enter cos(45) into a calculator, what calculations are being made?
And don't say 1/sec(x) or equivalent trig. identities.
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X is 45 and cos is a graph, so the calculator finds X on the cosine graph and gives you the equivalent value for Y Cos45 is equal to Sin45 as both graphs cross at x = 45
