Question
Mathematics Question on Relations and functions
Suppose the 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
Answer
19
Explanation
Solution
The correct option is (A): 19