\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
Угловой коэффициент k=x'(x0)=3*x0²=3*1²=3.
Ответ: k=3.
Y=-2/3*x+6
x=0 y=6
y=0 -2/3*x+6=0⇒2/3*x=6⇒x=6:2/3=6*3/2=9
Ответ (0;6);(9;0)
3arcctg(-ctg60)+0.5(arccos(cos45))=-3 x P\3+0.5 x p/4=-7P\8
tg(arccos(cosP\6)-0.5arcctg(ctgP\3))=tg(P\6-0.5 x P\3)=tg(0)=0