# calculus

posted by mei peng

Given that x3-axy+3ay2=3a3 Find the equations for the tangent and normal lines at point (a,a)

## Similar Questions

1. ### cal

Equations of the tangent lines to hyperbola xy=1 that pass through point (-1,1) I know the graph of y=1/x but not sure about the tangent lines at given point. Are the lines tangent to (1,1) and (-1,-1)?
2. ### calculus

Find equations of the tangent line and normal line to the curve at the given point. y = x^4 + 2e^x, (0,2)

find the lines that are (a) tangent and (b) normal to the curve at the given point x^2 + xy - y^2 = 1

find the lines that are tangent and normal to th ecurve at the point given 1. 2xy+piesiny=2pie (1, pie/2) 2. x^2cos^2y-siny=0 (0, pie)
5. ### Calculus

(A) Find the equations of the tangent lines to the circle x^2 +y^2=25 at the points where x=4. (B) Find the equations of the normal lines to this circle at the same points. (The normal line is perpendicular to the tangent line at that …
6. ### calculus

Suppose y is defined implicitly as a function of x by x^2+Axy^2+By^3=1 where A and B are constants to be determined. Given that this curve passes through the point (3,2) and that its tangent at this point has slope -1, find A and B.
7. ### calculus

Find equations for the lines that are tangent and normal to the graph of y = sinx + 3 at x = pi
8. ### calculus

find equations of the tangent lines to the curve y=x/(x+5) that pass through the point (2,7).