[tex] \frac{4 \cos( \alpha ) - \sin( \alpha ) }{2 \sin( \alpha ) + \cos( \alpha ) } [/tex]Если [tex] \cot( \alpha ) = 3[/tex]. Created by skakovasaule7. algebra-ru

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[tex] \frac{4 \cos( \alpha ) - \sin( \alpha ) }{2 \sin( \alpha ) + \cos( \alpha ) } [/tex]
Если
[tex] \cot( \alpha ) = 3[/tex]

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$\frac{4Cos\alpha-Sin\alpha}{2Sin\alpha+Cos\alpha} =\frac{\frac{4Cos\alpha}{Sin\alpha}-\frac{Sin\alpha}{Sin\alpha}}{\frac{2Sin\alpha}{Sin\alpha}+\frac{Cos\alpha }{Sin\alpha}}=\frac{4Ctg\alpha-1}{2+Ctg\alpha}=\frac{4*3-1}{2+3}=\frac{11}{5}=2,2$

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skakovasaule7 Спасибо большое за объяснение))))

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Verified answer

dayu 59 ballov ya reshila neravenstvo 1 ym resheniem ono okazalos nevernym 2 e r

texba238dc56581a8de09a1f2d0d2cacf4a 15629

texi obyasnite

vopros lyogkij mne prosto nuzhen otvetkalam prosklonyajte v prityazhatelnoj forme

odin vopros za 20 ballovvyberite primer svobodnyh kolebanij a kolebaniya gruza

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