Mathematics
Senior High
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「tanθ=sinθ/cosθ」の公式が二乗しても成立するのはなぜですか?

363 (1) tan0 = *21 1 tan²0 anosinoであるから? COS 0 1+ =1+ 1 sin ²0 2 cos²0 =1+ 2 2 sin²0 + cos²0 sin ²0 1 22 (7) ² 3 2 cos²0 9|4 sin ²0 2 1 sin ²0 20 TY DS

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