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Questions › JNU › JNU SIS 2015 › Q50
2 marks, −1Mathematics › Limits, continuity and differentiability › Continuity and discontinuitiesEasyabout 1 min

JNU SIS 2015 Question 50: Limits, continuity and differentiability

If f(x)=x2−2x+4x2+4x+3f(x) = \dfrac{x^2 - 2x + 4}{x^2 + 4x + 3}f(x)=x2+4x+3x2−2x+4​, then f(x)f(x)f(x) has

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If f(x) = (x² - 2x + 4)/(x² + 4x + 3), then f(x) has (A) no point of discontinuity (B) a single point of discontinuity at x = 2 (C) two points of discontinuity at x = 1 and x = 3 (D) two points of discontinuity at x = -1 and x = -3

Also written as: If f(x) = (x^2 - 2x + 4)/(x^2 + 4x + 3), then f(x) has

Limits, continuity and differentiability has come up 122 times in 7 exams since 2006.

What this question tests

This question is on Continuity and discontinuities, part of Limits, continuity and differentiability in Mathematics.

When a function is continuous at a point and what kinds of breaks occur.

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