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Clearnote
Q&A
Senior High
Mathematics
矢印のところ、何が起こってるんでしょうか😭😭😭
Mathematics
Senior High
almost 5 yearsago
うゆ
矢印のところ、何が起こってるんでしょうか😭😭😭
hoo o (2) y=3/3 cos°0+4sin@cos0 ー、3 sin°0 YA 1+ cos20 = 33 +2sin20-/3.1-cos20 2 2,3日 2 = 2sin20 + 23 cos20+ /3 = 4sin(20 + )+/3 π ニ 3 0 atnie ここで, 0<0ハ中より 2 4 π < 20+ 3 T S T 3 3 この範囲において -2/3 < 4sin( 20 + -)S4 3 よって 最大値4+/3, 最小値 -, mie
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