First we use product rule
y=x^2lnx
dy/dx = x^2 d/dx (lnx) + lnx d/dx (x^2)
dy/dx = x^2 (1/x) + lnx (2x)
dy/dx = x + 2xlnx
now taking second derivative:
d2y/dx2 = 1 + 2[x (1/x) + lnx (1)]
d2y/dx2 = 1 + 2[1+lnx]
1+2+2lnx
3+2lnx is the answer
Answer:
7x+5=7x+5 they are equal same lines
Step-by-step explanation:
Answer: <em><u>5 11/12</u></em>
Step-by-step explanation:
Since they only walked on Monday, Wednesday and Thursday,
You have to add 3/4 + 1 2/3 + 3 1/2
So, 3/4 + 1 2/3 + 3 1/2 =
3/4 + 2/3 + 1/2 = 1 11/12
1 + 3 = 4
4 + 1 11/12 = 5 11/12
Answer:
16
Step-by-step explanation:
