🎓 10th Samacheer Quiz
TRUE_FALSE

Relations and Functions

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Q1. In an onto function, at least one co-domain element is not an image.
Q2. Every function is a relation.
Q3. (g∘f)(x)=g(f(x)).
Q4. A∪A=A.
Q5. One-one சார்பில் இரண்டு வேறுபட்ட inputs ஒரே output-ஐ பெற முடியாது.
Q6. f(x)=x+5 இன் inverse function f⁻¹(x)=x−5 ஆகும்.
Q7. If one input has two different outputs, the relation is a function.
Q8. For f(x)=x²+2, f(0)=2.
Q9. A constant function can be one-one when its domain has only one element.
Q10. f(x)=x² is one-one on all real numbers.