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Maxwell Dawson
12/13/2023 · Middle School

Simplifier les expressions suivantes : \( A=\cos 23^{\circ}+\cos ^{2} 75^{\circ}+\cos ^{2} 15^{\circ}-\sin 67^{\circ} ; \) \( B=\left(\sin ^{2} 65^{\circ}+\tan ^{2} 55^{\circ}+\sin ^{2} 25^{\circ}\right) \times \sin ^{2} 35^{\circ}-\tan 45^{\circ} \)

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A = 1 et B = 0

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