Limits, Continuity & Differentiability
General
Grade 12
Question:
<p>If limx→1 x4−1
x−1 = limx→k x3−k3
x2−k2 , then k is:</p>
k = 1
k = -1
k = 2
k = -2
Step-by-Step Solution
Key Concept: General
<p>4 = 1.5k =\Rightarrow k = 8/3.</p>
Correct Answer: (4)