Question
Mathematics Question on limits and derivatives
If h(x)=4x3-5x+7 is the derivative of f(x), then t→0limtf(1+t)−f(1) is equal to
A
5
B
6
C
7
D
8
E
0
Answer
6
Explanation
Solution
The correct option is (B): 6
If h(x)=4x3-5x+7 is the derivative of f(x), then t→0limtf(1+t)−f(1) is equal to
5
6
7
8
0
6
The correct option is (B): 6