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June 13th, 2010, 12:33 AM   #1
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goniometric equation

pls help

Determine the solutions goniometric equations in G = [0 2? [
a) 2sin(x)=1/cos(x)

b)cos2(x)-sin2(x)=0.4
[quote] cos squar(x )minus sin squar(x )is equal to 0,4
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June 13th, 2010, 03:50 AM   #2
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Re: goniometric equation

Hello, ibros06!

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