Limits, Continuity & Differentiability
General
Grade 12
Question:
<p>If limx→1 x2−ax+b
x−1
= 5, then a + b is equal to:</p>
Step-by-Step Solution
Key Concept: General
<p>1 -a + b = 0 and 2 -a = 5 =\Rightarrow a = -3, b = -4 =\Rightarrow a + b = -7.</p>
Correct Answer: (1)