1а). (-2+1/х²)
b). (5√x +5/x²)
c). (4x³+6x)
d). -(2x/(x²-1)²)
2. а) 6х+(25/х^6)+(1/5√(5х+2)⁴)
б) -(3х²√(-9х^6-24х³-15))/3х^6+8х³+5
в) arctg(4x³)+(12x³+96x²)/(1+16x^6)
г) (4/3)х+1
е) (5cos(2x)-20+4cos(4x)cos(2x)-16cos(4x)+10x*sin(2x)+2sin(4x)sin(2x))/(cos(2x)-4)²
ж) -(15х²*sin(5x³+4))/(cos(5x³+4))
з) -(15cos(3x+1)⁴)/sin(3x+1)^6
и) 2ln(5)*5^(sin2x)*cos(2x)
к) -cos(x)^(x-1)*sin(x)*x+cos(x)^xlncos(x)