Տնային առաջադրանքներ
(a) (i) y=x4, (x4)’=4x3
(ii) y=x, (x)’=0
(b) (i) y=3x7, (3x7)’=3*(x7)=3*7*x7-1=21x6
(ii) y= -4x5, (-4x5)’=(-4)*x5=(-4)*5*x4=(-20x4)
(c) (i) y=10, (10)’=0
(ii) y= -3, (-3)’=0
(d) (i) y=4x3-5x2+2x-8
y’=4*3*x2-5*2*x+2*x-0=12x2-10x+2
(ii) y=2x4+3x3-x
y’=8x3+9x2-1
(e) (i) y=1/3x6
y’=(1/3)*6*x5=2x5
(ii) y=(-3/4x2)
y’=(-6/4x)=(-1,5x)
(f) (i) y=7x-(1/2)x3
y’=7-1,5x2
(ii) y=2-5x4+(1/5)x5
y’=(-20x3)+x4
(g) (i) y=x3/2
y’=3/2*√x
(ii) y=x2/3
y’=2/3x(-1/3)=2/(33√x)
(h) (i) y=6x4/3
y’=8x1/3=83√x
(ii) y=3/5x5/6
y’=(3/5)*(5/6)*x(-1/6)=3/6x(-1/6)=1/26√x
(i) (i) y=3x4-x2+15x2/5-2
y’=12x3-2x+6/5√x3
(ii) y=x3-3/5x5/3+4/3x1/2
y’=3x2-x2/3+2/3x(-1/2)=3x2—3√x2+2/3√x
(j) (i) y=(x-1)
y’= (-1/x2)
(ii) y=(-x-3)
y’==3/x4
(k) (i) y=x(-1/2)
y’=(-1/2)x(-1/2)-1=(-1/2)x(-3/2)=(-1/2√x3)
(ii) y= -8x(-3/4)
y’=6x(-3/4)-1=6*x(-7/4)=6/x(7/4)=6/4√x7
(l) (i) y=5x-8/15x5/2
y’=5-(8/15)*(5/2)*x3/2=5-4/3x3/2
(ii) y= -7/3x3/7+4/3x(-6)
y’= -7/3*3/7*x(-4/7)+4/3*x(-6)= (-1/7√x4)-(8/x7)