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AP EAMCET2006MathematicsDefinite Integration

If f(x, y)= (x-4 y) (x+4 y) , then . f x |_ y= x 2 is equal to :

Options

  1. A-1
  2. B0
  3. C1
  4. D2

Correct answer

B. 0

Step-by-step solution

f(x, y)= (x-4 y) (x+4 y) f (x, 2 )= (x-2 ) (x+2 ) = (2 -x) (2 +x) = x x =1 f x =0

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