<span>y+x=sinxy
</span><span>y'=cosxy*(xy)'
</span><span>y'=cosxy*(x'y+xy')
</span><span>y'=cosxy*(y+xy')
</span>y'=ycosxy+xy'<span>cosxy
</span>y'-xy'cosxy=ycosxy
y'(1-xcosxy)<span>=ycosxy
</span>y'=ycosxy/(1-x<span>cosxy)</span>
1). (x-10)*(x^2+10x+100)-x^3=x^3-1000-x^3= -1000; 2). 216-(a-6)*(a^2-6a+36)=216-a^3-216= -a^3.
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Формула
n° = πn° / 180°
1. π*60 / 180 = π/3
2. π*120 / 180 = 2π/3
3. π*150 / 180 = 5π / 6
4. π*225 / 180 = 5π / 4
5. π*240 / 180 = 7π / 6
6. π*300 / 180 = 5π / 3
7. π*345 / 180 = 23π / 12