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)

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