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Suppose that function f(x) - f(2x) has ...

Suppose that function f(x) - f(2x) has the derivative 5 at x = 1 and derivative 7 at x = 2 . The derivative of the function f(x) -f( 4x) at x = 1 has the value equal to

A

19

B

9

C

17

D

14

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A
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AAKASH SERIES-DIFFRENTATION-ADDITIONAL PRACTICE EXERCISE (LEVEL - I (MAIN))(Straight Objective Typee Questions)
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  18. If x = sec theta - cos theta and y = sec^(n) theta - cos^(n) theta the...

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