How do i solve this differentiation

johnnyc

Look i am looking for a website or someone out there in the net show me how you solve the following questions

Sin(x) Cos(y) + xy^2=0

x+xlogy =6y^2

any help or tips would be brill

LeixlipRed

What do you want to do exactly? No one here is allowed just give you the answer to this question (see charter) but we'll help you understand it and give you pointers on how to solve it yourself

MathsManiac

My guess is that you're trying to find dy/dx in each case.

This is an example of "implicit differentiation". if you're a leaving cert student, there'll be a section on it in your book. Scan through the chapter on differentiation in the book, looking for a subsection called "Implicit Differentiation" or "Differentiating functions defined implicitly" or some such.

Or google it, to get stuff like this:
http://www.sosmath.com/calculus/diff/der05/der05.html

johnnyc

all i want is a website to help me understand a similar problem like my one.... and by the way i aint a leaving cert student too much grey hair

LeixlipRed

If you read Maths Maniac's post you can see that that's what he's provided