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Limits Continuity and Differentiability question

2019 · 10 Apr · Shift 2 · Q26
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  5. /2019 · 10 Apr · Shift 2 · Q26

Limits Continuity and Differentiability question

2019 · 10 Apr · Shift 2 · Q26

JEE MainMathematicsLimits Continuity and DifferentiabilityMCQ+4 / −1
If lim⁡x→1x2−ax+bx−1=5\mathop {\lim }\limits_{x \to 1} {{{x^2} - ax + b} \over {x - 1}} = 5x→1lim​x−1x2−ax+b​=5, then a + b is equal to :
  1. A
    1
  2. B
    - 4
  3. C
    - 7
  4. D
    5
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