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Dau coroanaaa plssssssss


Dau Coroanaaa Plssssssss class=

Răspuns :

1. Cos A = √3/2
2. Cos A = 1/2
3. Sin x = 1/2, Cos x = √3/2
4. Sin x = 4/5, Cos x = 3/5
5. Cos B = 12/13
6. Sin x = 3/5
7. Sin x = 12/13, Cos x = 5/13