A few days ago
Can you help me how to find x pls?
1. sin2x – cos2x =1
2. sinx + cosx = 3
Top 1 Answers
A few days ago
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The second equation is impossible because the maximum value that both sinx and cosx can attain is 1, however when cosx=1, sinx=0, so they are never both equal to 1 at the same time. Even if they were both at their maximum at the same time then they would only equal 2 in total, so they can never =3.
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