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July 2022 1 1 Report

Помогите решить показательные уравнения пожалуйста!

1) [tex]3^{x+2} -3^x=72[/tex]
2) [tex]2^{-x+5= \frac{1}{4} [/tex]

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Хуqожнuк $1) 3^{x+2}-3^x=72 \\ 9*3^x-3^x=72 \\ 3^x(9-1)=72 \\ 3^x=72:8 \\ 3^x=9 \\ 3^x=3^2 \\ x=2 \\ OTBET:2. \\ 2) 2^{-x+5}=м \\ 2^{-x+5}=2^{-2} \\ -x+5=-2 \\ x=7 \\ OTBET:7.$

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pomogite pozhalujsta vychislit cos2x i ctg2x esli x prinadlezhit 1j chetverti co

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Saires777 July 2022 | 0 Ответы

vychislit cos2x i ctg2x esli x prinadlezhit 1j chetverti cosx06

Answer

Saires777 July 2022 | 0 Ответы

pomogite vychislite cos 2x i ctg 2x esli x prinadlezhit 1j chetverti cos x06

Answer

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tex] b) 1+2cosx=0...

pomogite reshit pozhalujsta 1 3x3 3x gt 78 232x 2 3x lt 3

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pomogite pozhalujsta vychislit cos2x i ctg2x esli x prinadlezhit 1j chetverti co

vychislit cos2x i ctg2x esli x prinadlezhit 1j chetverti cosx06

pomogite vychislite cos 2x i ctg 2x esli x prinadlezhit 1j chetverti cos x06

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