Bonjour pouvez-vous repondé Calculer
A=sin12°-sin44°+cos46°-cos78°
B=cos18°+sin²22°-sin72°+sin²68°
C=cos²20°+2cos²37°+cos²70°+2cos²53°
D=3sin²42°-5sin²56°+3sin²48°-5sin²34
E= sin34°xcos56°+cos34°xsin56°+tan34°xtan56°
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Et Merci
A=sin12°-sin44°+cos46°-cos78°
B=cos18°+sin²22°-sin72°+sin²68°
C=cos²20°+2cos²37°+cos²70°+2cos²53°
D=3sin²42°-5sin²56°+3sin²48°-5sin²34
E= sin34°xcos56°+cos34°xsin56°+tan34°xtan56°
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Et Merci
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