Логарифмическая функция и ее свойства и график
Определение. Логарифмической функцией называют функцию y = log a x, где a – любое положительное число, отличное от 1.
Графики логарифмических функций при различных значениях a представлены в следующей таблице.
y = ln x format('truetype')%3Bfont-weight%3Anormal%3Bfont-style%3Anormal%3B%7D%3C%2Fstyle%3E%3C%2Fdefs%3E%3Ctext%20fill%3D%22%23FFFFFF%22%20font-family%3D%22math1d9d4f495e875a2e075a1a4a6e1%22%20font-size%3D%2212%22%20text-anchor%3D%22middle%22%20x%3D%225.5%22%20y%3D%2214%22%3E.%3C%2Ftext%3E%3Ctext%20fill%3D%22%23FFFFFF%22%20font-family%3D%22math1d9d4f495e875a2e075a1a4a6e1%22%20font-size%3D%2212%22%20text-anchor%3D%22middle%22%20x%3D%225.5%22%20y%3D%2231%22%3E.%3C%2Ftext%3E%3C%2Fsvg%3E)



y = lgx



y = log2x
format('truetype')%3Bfont-weight%3Anormal%3Bfont-style%3Anormal%3B%7D%3C%2Fstyle%3E%3C%2Fdefs%3E%3Ctext%20fill%3D%22%23FFFFFF%22%20font-family%3D%22math1d9d4f495e875a2e075a1a4a6e1%22%20font-size%3D%2212%22%20text-anchor%3D%22middle%22%20x%3D%225.5%22%20y%3D%2214%22%3E.%3C%2Ftext%3E%3Ctext%20fill%3D%22%23FFFFFF%22%20font-family%3D%22math1d9d4f495e875a2e075a1a4a6e1%22%20font-size%3D%2212%22%20text-anchor%3D%22middle%22%20x%3D%225.5%22%20y%3D%2231%22%3E.%3C%2Ftext%3E%3C%2Fsvg%3E)



Вопросы к конспектам
Найдите область определения функции format('truetype')%3Bfont-weight%3Anormal%3Bfont-style%3Anormal%3B%7D%3C%2Fstyle%3E%3C%2Fdefs%3E%3Ctext%20fill%3D%22%23B94A48%22%20font-family%3D%22Arial%22%20font-size%3D%2212%22%20font-style%3D%22italic%22%20text-anchor%3D%22middle%22%20x%3D%223.5%22%20y%3D%2222%22%3Ey%3C%2Ftext%3E%3Ctext%20fill%3D%22%23B94A48%22%20font-family%3D%22math19290e2477baefb8e9b15f4a12a%22%20font-size%3D%2212%22%20text-anchor%3D%22middle%22%20x%3D%2213.5%22%20y%3D%2222%22%3E%3D%3C%2Ftext%3E%3Ctext%20fill%3D%22%23B94A48%22%20font-family%3D%22Arial%22%20font-size%3D%2212%22%20font-style%3D%22italic%22%20text-anchor%3D%22middle%22%20x%3D%2220.5%22%20y%3D%2222%22%3El%3C%2Ftext%3E%3Ctext%20fill%3D%22%23B94A48%22%20font-family%3D%22Arial%22%20font-size%3D%2212%22%20font-style%3D%22italic%22%20text-anchor%3D%22middle%22%20x%3D%2225.5%22%20y%3D%2222%22%3Eg%3C%2Ftext%3E%3Cline%20stroke%3D%22%23B94A48%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%2231.5%22%20x2%3D%2291.5%22%20y1%3D%2217.5%22%20y2%3D%2217.5%22%2F%3E%3Ctext%20fill%3D%22%23B94A48%22%20font-family%3D%22Arial%22%20font-size%3D%2212%22%20font-style%3D%22italic%22%20text-anchor%3D%22middle%22%20x%3D%2246.5%22%20y%3D%2213%22%3Ex%3C%2Ftext%3E%3Ctext%20fill%3D%22%23B94A48%22%20font-family%3D%22Arial%22%20font-size%3D%229%22%20text-anchor%3D%22middle%22%20x%3D%2252.5%22%20y%3D%228%22%3E2%3C%2Ftext%3E%3Ctext%20fill%3D%22%23B94A48%22%20font-family%3D%22math19290e2477baefb8e9b15f4a12a%22%20font-size%3D%2212%22%20text-anchor%3D%22middle%22%20x%3D%2261.5%22%20y%3D%2213%22%3E%2B%3C%2Ftext%3E%3Ctext%20fill%3D%22%23B94A48%22%20font-family%3D%22Arial%22%20font-size%3D%2212%22%20text-anchor%3D%22middle%22%20x%3D%2270.5%22%20y%3D%2213%22%3E4%3C%2Ftext%3E%3Ctext%20fill%3D%22%23B94A48%22%20font-family%3D%22Arial%22%20font-size%3D%2212%22%20font-style%3D%22italic%22%20text-anchor%3D%22middle%22%20x%3D%2277.5%22%20y%3D%2213%22%3Ex%3C%2Ftext%3E%3Ctext%20fill%3D%22%23B94A48%22%20font-family%3D%22Arial%22%20font-size%3D%2212%22%20font-style%3D%22italic%22%20text-anchor%3D%22middle%22%20x%3D%2236.5%22%20y%3D%2231%22%3Ex%3C%2Ftext%3E%3Ctext%20fill%3D%22%23B94A48%22%20font-family%3D%22Arial%22%20font-size%3D%229%22%20text-anchor%3D%22middle%22%20x%3D%2242.5%22%20y%3D%2226%22%3E2%3C%2Ftext%3E%3Ctext%20fill%3D%22%23B94A48%22%20font-family%3D%22math19290e2477baefb8e9b15f4a12a%22%20font-size%3D%2212%22%20text-anchor%3D%22middle%22%20x%3D%2251.5%22%20y%3D%2231%22%3E%26%23x2212%3B%3C%2Ftext%3E%3Ctext%20fill%3D%22%23B94A48%22%20font-family%3D%22Arial%22%20font-size%3D%2212%22%20text-anchor%3D%22middle%22%20x%3D%2260.5%22%20y%3D%2231%22%3E3%3C%2Ftext%3E%3Ctext%20fill%3D%22%23B94A48%22%20font-family%3D%22Arial%22%20font-size%3D%2212%22%20font-style%3D%22italic%22%20text-anchor%3D%22middle%22%20x%3D%2267.5%22%20y%3D%2231%22%3Ex%3C%2Ftext%3E%3Ctext%20fill%3D%22%23B94A48%22%20font-family%3D%22math19290e2477baefb8e9b15f4a12a%22%20font-size%3D%2212%22%20text-anchor%3D%22middle%22%20x%3D%2277.5%22%20y%3D%2231%22%3E%26%23x2212%3B%3C%2Ftext%3E%3Ctext%20fill%3D%22%23B94A48%22%20font-family%3D%22Arial%22%20font-size%3D%2212%22%20text-anchor%3D%22middle%22%20x%3D%2286.5%22%20y%3D%2231%22%3E4%3C%2Ftext%3E%3C%2Fsvg%3E)
Найдите область определения функции y = log0,1(x2 - 3x - 4)
Найдите область определения функции y = log3(4 - 5x)
Найдите область определения функции f(х) = lg(1-x-2x2)
Найдите область определения функции y = log2(x + 6) + log3(6-x)
Последнее изменение: Среда, 1 Февраль 2017, 19:08