If You Know the Directional Derivative of F(x, Y)in Two $\frac { \partial f } { \partial x } ( P )$

question 15

True/False

If you know the directional derivative of f(x, y)in two distinct directions (i.e.not including opposite directions)at a point P then you can find $\frac { \partial f } { \partial x } ( P )$

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