(100-x)/16 + sqrt...

(100-x)/16 + sqrt (60^2+x^2) / 8 Взять производную

 

1. (100-x)/16=100/16-x/16
2. 100/16=(25//4)
3. 60^2=3600
X60
_6_0_ _
3600
4. s*(3600+x^2)=s*3600+s*x^2
5. (s*3600+s*x^2)*q=s*3600*q+s*x^2*q
6. (s*3600*q+s*x^2*q)*r=s*3600*q*r+s*x^2*q*r
7. (s*3600*q*r+s*x^2*q*r)*t=s*3600*q*r*t+s*x^2*q*r*t
8. (s*3600*q*r*t+s*x^2*q*r*t)/8=s*3600*q*r*t/8+s*x^2*q*r*t/8
9. 3600/8=450
3600|8_ _
3_2_ |450
40
4_0_
0
 
незнаю правильно или нет(((