Срочно)ПОЖАЛУЙСТАААупростить1)cos 36°+sin² 18°/cos² 18°2)sin α / 2sin² α/2. Created by samatbasket. algebra-ru

2...

samatbasket @samatbasket

July 2022 1 9 Report

Срочно)ПОЖАЛУЙСТААА
упростить
1)cos 36°+sin² 18°/cos² 18°
2)sin α / 2sin² α/2

Answers & Comments

Матов

Verified answer

$\frac{cos36+sin^218}{cos^218}=\frac{2cos^218-1+sin^218}{cos^218}=\\ \frac{cos^218+sin^218+cos^218-1}{cos^218}=\frac{1-1+cos^218}{cos^218}=1$

$\frac{sina}{2sin^2\frac{a}{2}} = \frac{sina}{1-cosa}=ctg\frac{a}{2}$

0 votes Thanks 2

srochno ochen 1iz oksida alyuminiya massoj 4 kg poluchilialyuminij massoj 2 kgopr

Answer

samatbasket August 2022 | 0 Ответы

pomogi pozhalujstasochinenie na temu geroj nashego vremenine pro proizvedeniyu a

Answer

samatbasket July 2022 | 0 Ответы

2...

Answer

samatbasket July 2022 | 0 Ответы

srochnostorony dannogotreugolnika 12 sm 8 i6sm najdite storony podobnogo

Answer

samatbasket July 2022 | 0 Ответы

pozhalujstashodstva i razlichiya lyutika edkogo i lyutika polzuchegoobyasnite pozhalu5c60184e3f4cc39cbcfc9133b0fb8c13 7345

Answer

samatbasket July 2022 | 0 Ответы

Answers & Comments

Verified answer

srochno ochen 1iz oksida alyuminiya massoj 4 kg poluchilialyuminij massoj 2 kgopr

pomogi pozhalujstasochinenie na temu geroj nashego vremenine pro proizvedeniyu a

2...

srochnostorony dannogotreugolnika 12 sm 8 i6sm najdite storony podobnogo

pozhalujstashodstva i razlichiya lyutika edkogo i lyutika polzuchegoobyasnite pozhalu5c60184e3f4cc39cbcfc9133b0fb8c13 7345

rasstavte znaki prepinaniyanajdite grammaticheskie osnovy skolkosintaksichesk

pozhalujsta pomogitezavtra prosto zagruzhennyj denvremeni netuesli ugol pri

srochnonuzhno napisat pismo sochinenie stalinu ot svoego imeni

pozhalujstaochen srochno1u sobaki chernyj cvet shersti dominiruet nad korichnev

berilgen sjlemderge sintaksistik taldau zhasaoj eshki siyr riske ketkenimen

рекомендуемые вопросы

Helpful Links

Helpful Social