Mathematics · Continuity and Differentiability
Let α, β ∈ ℜ be such that the function Testbook f(x) = {αx2 + 2βx - 3α , x < 2 (α + 2)x + (α - β) , x ≥ 2 is differentiable for all x ∈ ℜ. Find the value of 25(α + β).
- 125
- 222✓
- 320
- 421
Correct answer
22
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