Which of the following statements is not correct?
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4 marks, −1MathematicsConcavity, convexity and quasi-concavityQuasi-concavity and quasi-convexityModerateabout 1 min
CUET-PG 2025 Question 4: Concavity, convexity and quasi-concavity
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Which of the following statements is not correct? (A) If f(x) is quasiconcave then -f(x) is quasiconvex. (B) If f(x) is a linear function, then it is quasiconcave as well as quasiconvex. (C) Any concave function is quasiconcave but the converse is not true. (D) Any convex function is quasiconvex and its converse also holds.
Concavity, convexity and quasi-concavity has come up 39 times in 6 exams since 2006.
What this question tests
This question is on Quasi-concavity and quasi-convexity, part of Concavity, convexity and quasi-concavity in Mathematics.
The weaker shape conditions defined by upper or lower level sets.
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