# Please give a warm-up quiz

# Understand the problem

##### Source of the problem

##### Topic

##### Difficulty Level

##### Suggested Book

Generalized Directional Derivatives Â By Pastor Karel

# Start with hints

Now by the above definition can you try to solve the problem ???????

Â The points on the straight line So any point on the straight line would be of the form Here the direction of the straight line would be

Now we have to consider the unit vector in that direction and so the unit vector would be Here the absolute value of the directional derivative would be . Would you like to calculate this dot product?

Â i.e the co-ordinates involving partial derivative of . So,

Then (Ans) .

# A graphical view point

# Take A Look At This Knowledge GraphÂ

# Connected Program at Cheenta

#### College Mathematics Program

The higher mathematics program caters to advanced college and university students. It is useful for I.S.I. M.Math Entrance, GRE Math Subject Test, TIFR Ph.D. Entrance, I.I.T. JAM. The program is problem driven. We work with candidates who have a deep love for mathematics. This program is also useful for adults continuingÂ who wish to rediscover the world of mathematics.

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