August 2022 0 5 Report
Помогите с логарифмическими уравнениями:
1) [tex](log _{9} (7-x)+1)log _{(3-x)}3=1 [/tex]
2) [tex]log _{3} 3x+log _{3} (4x+1)=log _{(4x^{2}+x) }9 [/tex]
3) [tex]log _{2} \frac{x}{2} +log _{2} (21x-2)=2log _{(21x^{2}-2x) }8 [/tex]
4) [tex]log _{ \sqrt{6} } ctgx=1+log _{6}( \frac{3}{2}-cos2x) [/tex]
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