Answer to Question #66421 in Calculus for Manoj

Question #66421

If f(x,y) = (x^1/4+y^1/4)/(x^1/5+y^1/5), then show that x×df/dx +y ×df/dy = 1/20 f(x,y) stating the result used.

Expert's answer

Download Answer

Learn more about our help with Assignments: Calculus Pre-Calculus Differential Calculus Multivariable Calculus

Comments

No comments. Be the first!

Leave a comment

Related Questions

1. True or false, why? (1) the level curves of z=y/x are hyperbolas. (2) lim (x,y) tends to (0,0) x^2-y
2. Show that 2z =(ax+y)^2 + B , where a, b are arbitrary constants is a complete integral of px+qy-q^2
3. Solve the following equation by Jacobi’s method x^2 du/dx -(du/dx)^2 - (du/dz)^2 =0
4. If f(x,y)= (x^1/4+y^1/4)/(x^1/5+y^1/5),then show that x×∂f/∂x+y×∂f/∂y=1/20×f(x,y)stating
5. .Find the length of the arc of the hyperbolic spiral rθ = a lying between r= a and r= 2a
6. If y= tan inverse x , obtain an equation showing the relationship between y n+2, y n+1 and yn
7. ) An efficiency study of the workers at a factory shows that an average worker who comes to work at