Mathematics, 18.06.2021 19:20 karenjunior

1.Biến đổi thành tích các biểu thức sau C = cos^2 (3a) + cos^2 (2a) - sin^2 a

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1.Biến đổi thành tích các biểu thức sau C = cos^2 (3a) + cos^2 (2a) - sin^2 a...

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