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Mathematics Senior High

どうして底10とおくのですか？

劇肛記 <。 <の問の関係を調べるので 商間け 条件より, ①の各辺は 数をとり, それらをんとおくと, 1ognogの1ogro が三lognoc”王ん (キ0) 則り ァlogipgッlogioの三るlogioc三ん したがって, ヶキ0, ッキ0, <々キ0, をキギ0 より, 1 logioZ 山 logioひ 1 = logioc 5 放り (スン ん これを②に代入すると, logio@ = logio op 1ogioc ん ん ん 2R リリ。 1ogio十logi。6三210gic 1ogio2のlogc* 2つ) 16 Cのムーc* 指数の関係式 一> 対数をとれ 彦 底のとり方
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Mathematics Senior High

線のところなんですが、なぜcos 6Xになるのか変形を詳しく教えて下さい 多分二倍角を利用するのでは？とは思っているのですがそこから手が止まってしまって…

IN/ ツレ NII OZ/ ーークーへん 10g。 284 (1) アニ2sin3ヶ・(sin 3ヶ) ー2Sin 9え・3COS3ァー3sin6, ② アニ(sin?*)・cos5*十sin5ヶ *(cos5*y =5sin*ァ・(sin *)・cos5* sin?*・(一sin5*・5) =5sin**coscos5ァ一5sin5 ysins =5sin*ヶ(cosycos5x sin Sin5*) =5sin4ycos6ァ RI ON 蘭S/ | . 1 Q⑳ ヵ=(simをcosy)=(ニsin2ヶ | ニーsim枯 2 16 よって ダ 三 1 0 3の 。 16' 4sin “2ァ・2cos2*
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English Senior High

BとＣを教えて頂きたいです🙏🏻

1 MMドー ーー box below 了The ( ) was followea by a big souna 6 . Finish your ( ) by Friday に ま 32. One ( ) was found 則 on a boat after the accident. ) to write a thank 8 -you letter to t 5. The city was ( NBAA ) by a terrible fre. assignm 4 SA NE 7 destroyed 7 flash / promised / survivor / ョ 8 Choose the correct Word for each. 前間0 atror j ョmv 7 ら. His eary ( recover / Tecovery ) was good news for us. 3. More than 50 ( survived / Survivors ) the terrible accident. pt have to talk about Such ( impossible / impossibilities お 2 東 He was wearing heavy ( bandaged / bandages ). 還 Fl in the blanks to paraphrase the sentences. 1/ 比 took her two hours to finish her book report. ー She ( ) two hours ( ) her book report. どら. He says nice things about her when other people are around. ー He says nice things about her in ( 0 3. The man died because he got so old. ー The man died ( ) old age.
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