Question
Question: f(x) =\(f^{'}(1) = 4\) is continuous from right at the point x = 2, then k equals :...
f(x) =f′(1)=4 is continuous from right at the point x = 2, then k equals :
A
0
B
¼
C
–1/4
D
None
Answer
¼
Explanation
Solution
k = limx→2+ (x2+e2−x1)−1
k = limh→0 [(2+h)2+eh−1]−1
= (4 + 0 + 0 + e–∞)–1
= ¼