<span>sint+cost=0,6 возведем обе части в квадрат</span>
3.5 * (12.75 + 2.25 - 15) = 3.5 * 0 = 0
<span> f (x) = sin2x - x√2
</span>F' (x)=2cos2x-√2
2cos2x-√2=0
cos2x=√2/2
x=+-π/8+πn
x=π/8+πn ;-π/8+πn;17π/8+πn;15π/8+πn
Решение
limx--> 0 sin6x / 3x = 2* limx--> 0 sin6x / 6x = = 2