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Q19. Assertion (A): The function f(x)=x
2
-x+1 is strictly increasing on (-1,1)
Reason (R): If f(x) is continuous on [a, b] and derivable on (a, b), then f(x) is strictly increasing on [a, b] if f'(x) > 0 for all x€(a, b).
Solution
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