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1. |
If X and Y are given as current co-ordinates, what is the equation of the tangent at a specific point of x3 3axy + y3 = 0 at (x, y)? |
A. | (x<sup>2</sup> ay)X + (y<sup>2</sup> ax)Y = -2axy |
B. | (x<sup>2</sup> ay)X + (y<sup>2</sup> ax)Y = 2axy |
C. | (x<sup>2</sup> ay)X + (y<sup>2</sup> ax)Y = axy |
D. | (x<sup>2</sup> ay)X + (y<sup>2</sup> ax)Y = -axy |
Answer» D. (x<sup>2</sup> ay)X + (y<sup>2</sup> ax)Y = -axy | |