The number of positive integers x , for which the function f(x)=(2x−1)x2−10x−11 is not defined is

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answer is D.

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Detailed Solution

(2x−1)(x2−10x−11)≥0 (2x−1)(x+1)(x−11)≥0 f is not defined at (x≠−1, 11) x∈(−∞,−1)∪(12,11) Number of +ve integer = 11

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