- Rewrite the equation −5x^2+x−4y^2+5z^2−z−4=0 in cylindrical and spherical coordinates.?

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Can anyone solve the following Euler equation: x²y'' + 2xy' - 6y = 0? Y = (-x^3)/(x^2- 9) What are the y and x intercepts. Step by Step would be nice :)? How to draw the molecule NOBr and how can I calculate its bond angle? Thank you!? 5 times 2y? Find the point on the curve 2y=x^4 nearest to (4,1).?