1)f'(x)=(2/(2√x))*(x+1)+2√x=(1/√x)*(x+1)+2√x;
f'(4)=(1/√4)*(4+1)+2√4=2.5+4=6.5
2)f'(x)=x+(1/x²)=1-2/х³
f'(2)=1-0.25=0.75
Если второе условие такое, f(x)=(x+1)/x², то
f'(x)=((x+1)/x²)'=(x²-2x*(x+1))/x⁴=(-x²-2x)/x⁴
f'(2)=(-4-4)/16=-0.5
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Verified answer
1)f'(x)=(2/(2√x))*(x+1)+2√x=(1/√x)*(x+1)+2√x;
f'(4)=(1/√4)*(4+1)+2√4=2.5+4=6.5
2)f'(x)=x+(1/x²)=1-2/х³
f'(2)=1-0.25=0.75
Если второе условие такое, f(x)=(x+1)/x², то
f'(x)=((x+1)/x²)'=(x²-2x*(x+1))/x⁴=(-x²-2x)/x⁴
f'(2)=(-4-4)/16=-0.5