Mathematics
Senior High
Resolved
オレンジの線を引いているところの変形の仕方が分からないので途中式を教えて下さい!
265keN
SnY ( [tes2X).* Sh py し[tcosx) = o
いンン
e oS*)c -| 2Sぐux CssX
).2.ろ < ッバ
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