упростите выражение cos^2t + ctg^2t cos^2t

MrRedFoll @MrRedFoll

September 2021 1 21 Report

упростите выражение
cos^2t + ctg^2t cos^2t - ctg^2t

Answers & Comments

KuOV

Verified answer

Cos²t + ctg²t · cos²t - cos²t / sin²t =
= cos²t (1 + ctg²t - 1/sin²t) = cos²t (1/sin²t - 1/sin²t) = 0

Использовалось тождество:
1 + ctg²t = 1 / sin²t

1 votes Thanks 1

himiya zubnye pasty chasto soderzhat karbonat kalciya no ne prirodnyj pochemu

Answer

MrRedFoll August 2022 | 0 Ответы

pomogite s algebroj rebyat84454a546c3e5001ecf3d7142b8d6b3e 67755

Answer

MrRedFoll August 2022 | 0 Ответы

posle zaryadki kondensatora emkost s ot postoyannogo napryazheniya u pereklyuchatel

Answer

MrRedFoll August 2022 | 0 Ответы

Answers & Comments

Verified answer

himiya zubnye pasty chasto soderzhat karbonat kalciya no ne prirodnyj pochemu

pomogite s algebroj rebyat84454a546c3e5001ecf3d7142b8d6b3e 67755

posle zaryadki kondensatora emkost s ot postoyannogo napryazheniya u pereklyuchatel

svoboda kak uslovie samorealizacii lichnosti napisat dva argumenta

napisat specialnye sociologicheskie teorii izuchayushie lichnost i obshestvo

v treugolnike abc mediana aa1 bb1 cc1 ravnye sootvetstvenno 6 sm 9 sm 12 s

1 pri razlozhenii 568 g smesi karbonatov kalciya i magniya vydelilos 1344 l ug

pomogite po geografii po planu nuzhno raspisat pereskaz

himiki na pomosh 1 temperaturnyj koefficient raven 4 vo skolko raz uveli

himikiii teplovoj koefficient raven 4 vo skolko raz uvelichitsya skorost rea

рекомендуемые вопросы

Helpful Links

Helpful Social