Mathematics
Senior High
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4step p61 例題25
解答の、2個目から3個目への変形が分かりません💦
1525 sin (0+2)
例題25
解答
よって
3
sin(0+)-sin(0++x)=-sin(0+)--cos
2
+sin(0+π)+sin(0+ (327)
2
π +sin (0+2²) を簡単にせよ。
2
t=cos 0+(-sin0)+(-cos)+sin0=0
Answers
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