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Linear approximation of f (x) = 2x^(2) +...

Linear approximation of `f (x) = 2x^(2) + 3x at x =1` is:

A

`2x+5`

B

`2x -7`

C

`7x-2`

D

`0`

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The correct Answer is:
C
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PREMIERS PUBLISHERS-DIFFERENTIALS AND PARTIAL DERIVATIVES-PROBLEMS FOR PRACTICE
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  13. If f (x,y) is homogeneous function of degree 5 then x (del f)/(delx) +...

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  19. If u =x ^(3) +2xy^(2) -x ^(2)y show that (del^(2)u)/(delxdely) =(del^(...

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