Quote:
Originally Posted by Calculus26  Start with the pythagorean thm:
x^2 + y^2 = 5^2
now diff wrt t |
what do you mean by this?
diff part
What formula should I use?
I used
b^2+h^2=5^2
diff both sides I get
(25-h^2)^0.5+h^2=5^2
-h(25-h^2)^-0.5 dh/dt +2h dh/dt = 0
dh/dt=0..
doesnt work