Решите уравнение: 4^x

June 2022 1 7 Report

Решите уравнение: 4^x - 5*2^x +6=0

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nKrynka Решение
4^x - 5*2^x + 6 = 0
2^(2x) - 5*2^x + 6 = 0
2 ^x = t, y > 0
t² - 5t + 6 = 0
t₁ = 2
t₂ = 3
1) 2^x = 2
x₁ = 1
2) 2^x = 3
log₂ (2^x) = log₂ 3
x log₂ 2 = log₂ 3
x₂ = log₂ 3
Ответ: x₁ = 1 ; x₂ = log₂ 3

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(x^2+x-2) x=>-2...

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marknefedov July 2022 | 0 Ответы

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marknefedov July 2022 | 0 Ответы

skolko sushestvuet razlichnyh simvolnyh posledovatelnostej dliny 6 v chetyrehbuk488a4645568d7d795263cc39277ee6b9 61285

Answer

marknefedov July 2022 | 0 Ответы

Answers & Comments

(x^2+x-2) x=>-2...

f ukazhite na kakom naimenshem rasstoyanii ot linzy mozhno pomestit lampochku cht89fe3b1ab2ce2bf2603a124079ca96e3 25078

skolko sushestvuet razlichnyh simvolnyh posledovatelnostej dliny 6 v chetyrehbuk488a4645568d7d795263cc39277ee6b9 61285

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