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15-04-2020
Mathematics

contestada

cos87°cos33° - sin87°sin33°

Respuesta :

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20-04-2020

Answer:

-[tex]\frac{1}{2}[/tex]

Step-by-step explanation:

cos(87° + 33°) = cos(120°) = -[tex]\frac{1}{2}[/tex]

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