Bonjour pouvez-vous repondé Calculer A=sin12°-sin44°+cos46°-cos78° B=cos18°+sin²22°-sin72°+sin²68° C=cos²20°+2cos²37°+cos²70°+2cos²53° D=3sin²42°-5sin²56°+3sin²
Mathématiques
hibaomri
Question
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
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
1 Réponse
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1. Réponse Azerty135
Réponse :
A = sin12°-sin44°+cos46°-cos78° = 0
B = cos18°+sin22°-sin72°+sin68° = 1,301790448
C = cos20°+cos37°+cos70°+cos53° = 2,6821632973
D = sin42°-sin56°+sin48°-sin34 = 0,024449558
E = sin34°xcos56°+cos34°xsin56°+tan34°xtan56° = 2