Concept-wise Practice

interval endpoint MCQ Questions for Class 12

interval endpoint se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.

Practice Questions

1 questions tagged with interval endpoint.

यदि \(f:\mathbb{R}\to[0,1]\), (f(x)=\frac{1}{1+x-2}) है, तो आच्छादी स्थिति क्या है?

If \(f:\mathbb{R}\to[0,1]\), (f(x)=\frac{1}{1+x-2}), what is the onto status?

Explanation opens after your attempt
Correct Answer

A. यह आच्छादी नहीं हैIt is not onto

Step 1

Concept

(f(x)) is always greater than (0).

Step 2

Why this answer is correct

The codomain ([0,1]) contains (0), but no real (x) gives it.

Step 3

Exam Tip

Pay close attention to open and closed endpoints. चरण 1: (f(x)) हमेशा (0) से बड़ा रहता है। चरण 2: सहप्रांत ([0,1]) में (0) है, पर कोई वास्तविक (x) इसे नहीं देता। चरण 3: खुले और बंद अंतराल के अंतर पर खास ध्यान दें।

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