to find fx, pretend y is a constant and differentiate as usual. to find fy, pretend x is a constant and differentiate as usual. where can you get with that?
so for the first one, I think fx = 2x but for fy I get confused can you help me please! I know the rules butusing the product or quotient rule confuses me.
so for the first one, I think fx = 2x but for fy I get confused can you help me please! I know the rules butusing the product or quotient rule confuses me.
how is fx = 2x?
if you wanted to differentiate x^2 / 3 what would that be?
my point is, the constant stays! if you have a constant multiplying a variable, then the constant does not disappear when you differentiate. it stays there and multiplies the variable. this is a rule of differentiation you should be familiar with.