1) x appartient à [0;2]
2) Aire = 4² - 4 . 1,2² = 16 - 4.1,44 = 16 - 5,76 = 10,24 cm²
3) A(x) = 16 - 4 x²
4) A = 4² -8 x + 8 x - 2² x² = 16 - 4 x²
1) Aire = 4R² - pi R²
2) Aire = ( 4 - pi ) R²
3) Aire = 62,01993078 = 62 cm²
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1) x appartient à [0;2]
2) Aire = 4² - 4 . 1,2² = 16 - 4.1,44 = 16 - 5,76 = 10,24 cm²
3) A(x) = 16 - 4 x²
4) A = 4² -8 x + 8 x - 2² x² = 16 - 4 x²
1) Aire = 4R² - pi R²
2) Aire = ( 4 - pi ) R²
3) Aire = 62,01993078 = 62 cm²