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Mnenie [13.5K]
3 years ago
11

Sin^2(x)-cos^2(x)=0 Find all the solutions in the interval [0,2pi) Plz help.

Mathematics
1 answer:
emmainna [20.7K]3 years ago
5 0
Hello,
as sin² x -cos² x=cos 2x
The equation is
cos 2x=0
==>2x=π/2+kπ
==>x=π/4+kπ/2 with k integer


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