Если х=1, то у=2*1-2=0 (1;0)
Если х=1, то у=4/1=4 (1;4)
1.(x-2^5)/5
2.3e^x+cosx
3.x^5+x^4/2
Производная суммы равна сумме производных
![y` = 5x^{5-1}+cos(4x)*(4x)`=5x^4+4cos4x](https://tex.z-dn.net/?f=y%60+%3D+5x%5E%7B5-1%7D%2Bcos%284x%29%2A%284x%29%60%3D5x%5E4%2B4cos4x)
x=13+3y 52+12y+5y=18 => 17y=-34 => y=-2 => x=13-6 x=7
sin²x = (1-cos2x)/2
cos²x = (1+cos2x)/2
sin²π/12 * cos²π/12 = (1-cosπ/6)*(1+cosπ/6)/2*2 = (1 - cos²π/6)/4 = (1 - (√3/2)²)/4 =
= (1 - 3/4)/4 = (1/4)/4 = 1/16
Ответ: 1/16