Найду корень уравнения: 27^x=9^y
/ re(y)\ / y\
log\9 / I*arg\9 /
x1 = ----------- + ---------
3*log(3) 3*log(3) /| ____ ____|\
||3 / y ___ 3 / y ||
||\/ 9 I*\/ 3 *\/ 9 || / ____ \
log||------- - ---------------|| |3 / y / ___\|
\| 2 2 |/ I*arg\\/ 9 *\-1 + I*\/ 3 //
x2 = -------------------------------- + -----------------------------
log(3) log(3) /| ____ ____|\
||3 / y ___ 3 / y ||
||\/ 9 I*\/ 3 *\/ 9 || / ____ \
log||------- + ---------------|| | 3 / y / ___\|
\| 2 2 |/ I*arg\-\/ 9 *\1 + I*\/ 3 //
x3 = -------------------------------- + -----------------------------
log(3) log(3) сумма
/| ____ ____|\ /| ____ ____|\
||3 / y ___ 3 / y || ||3 / y ___ 3 / y ||
||\/ 9 I*\/ 3 *\/ 9 || / ____ \ ||\/ 9 I*\/ 3 *\/ 9 || / ____ \
/ re(y)\ / y\ log||------- - ---------------|| |3 / y / ___\| log||------- + ---------------|| | 3 / y / ___\|
log\9 / I*arg\9 / \| 2 2 |/ I*arg\\/ 9 *\-1 + I*\/ 3 // \| 2 2 |/ I*arg\-\/ 9 *\1 + I*\/ 3 //
----------- + --------- + -------------------------------- + ----------------------------- + -------------------------------- + -----------------------------
3*log(3) 3*log(3) log(3) log(3) log(3) log(3) =
/| ____ ____|\ /| ____ ____|\
||3 / y ___ 3 / y || ||3 / y ___ 3 / y ||
||\/ 9 I*\/ 3 *\/ 9 || ||\/ 9 I*\/ 3 *\/ 9 || / ____ \ / ____ \
log||------- + ---------------|| log||------- - ---------------|| / re(y)\ |3 / y / ___\| | 3 / y / ___\| / y\
\| 2 2 |/ \| 2 2 |/ log\9 / I*arg\\/ 9 *\-1 + I*\/ 3 // I*arg\-\/ 9 *\1 + I*\/ 3 // I*arg\9 /
-------------------------------- + -------------------------------- + ----------- + ----------------------------- + ----------------------------- + ---------
log(3) log(3) 3*log(3) log(3) log(3) 3*log(3)произведение
/ /| ____ ____|\ \ / /| ____ ____|\ \
| ||3 / y ___ 3 / y || | | ||3 / y ___ 3 / y || |
| ||\/ 9 I*\/ 3 *\/ 9 || / ____ \| | ||\/ 9 I*\/ 3 *\/ 9 || / ____ \|
/ / re(y)\ / y\\ |log||------- - ---------------|| |3 / y / ___\|| |log||------- + ---------------|| | 3 / y / ___\||
|log\9 / I*arg\9 /| | \| 2 2 |/ I*arg\\/ 9 *\-1 + I*\/ 3 //| | \| 2 2 |/ I*arg\-\/ 9 *\1 + I*\/ 3 //|
|----------- + ---------|*|-------------------------------- + -----------------------------|*|-------------------------------- + -----------------------------|
\ 3*log(3) 3*log(3)/ \ log(3) log(3) / \ log(3) log(3) /=
/ / ____ \ /| ____|\\ / / ____ \ /| ____|\\
/ / y\ / re(y)\\ | |3 / y / ___\| ||3 / y ||| | | 3 / y / ___\| ||3 / y |||
\I*arg\9 / + log\9 //*\I*arg\\/ 9 *\-1 + I*\/ 3 // + log\|\/ 9 |//*\I*arg\-\/ 9 *\1 + I*\/ 3 // + log\|\/ 9 |//
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3
3*log (3)