Class 11 Mathematics Permutations and Combinations Derivations of formulas and their connections Hard Level 65

(0) included digits से (4)-digit numbers बनाते समय first digit restriction क्यों अलग handle होती है?

Why is the first digit restriction handled separately when forming (4)-digit numbers from digits including (0)?

Explanation opens after your attempt
Correct Answer

A. क्योंकि first digit (0) होने पर number (4)-digit नहीं रहेगाBecause if the first digit is (0), the number will not remain (4)-digit

Step 1

Concept

A leading zero does not form a valid (4)-digit number. In exams check the first-place condition first in digit arrangements.

Step 2

Why this answer is correct

The correct answer is A. क्योंकि first digit (0) होने पर number (4)-digit नहीं रहेगा / Because if the first digit is (0), the number will not remain (4)-digit. A leading zero does not form a valid (4)-digit number. In exams check the first-place condition first in digit arrangements.

Step 3

Exam Tip

Leading zero valid (4)-digit number नहीं बनाता। परीक्षा में digit arrangement में first place condition पहले देखें।

Question me issue ya doubt hai?

Answer, explanation, typing mistake ya suggestion directly hamari team ko bhejein. 📱Helpline (Call / WhatsApp): +91 7272824365

Related Mathematics Questions

Check out these related questions:

  1. यदि \(\theta\) चतुर्थ चतुर्थांश में है और \(\cos \theta=\frac{8}{17}\), तो \(\tan \theta\) क्या होगा?
  2. यदि \(\sin x+\sin^2 x=0\), तो \(0\leq x<2\pi\) में कितने हल हैं?
  3. फलन (f(x)=\sin 2x+\sin 4x) का मूल आवर्त क्या है?
  4. \(5\sin x-12\cos x\) का अधिकतम मान क्या है?
  5. यदि \(\cos x=-\frac{1}{2}\), तो \(0\leq x<2\pi\) में (x) के मान कौन-से हैं?
  6. यदि \(\sin x=\frac{1}{2}\), तो \(0\leq x<2\pi\) में (x) के मान कौन-से हैं?
  7. \(\cos 3x\) का सही विस्तार कौन-सा है?
  8. \(\sin 3x\) का सही विस्तार कौन-सा है?
  9. यदि (x) तृतीय चतुर्थांश में है और \(\tan x=\frac{4}{3}\), तो \(\sin x\) क्या है?
  10. यदि (x) द्वितीय चतुर्थांश में है और \(\sin x=\frac{5}{13}\), तो \(\cos x\) क्या होगा?

Related Mathematics Learning Links

Mathematics Subject

Level-wise subject practice

Permutations and Combinations Quiz

Chapter-wise MCQ practice

Search Similar MCQs

Find related questions

Daily Challenge

Fresh quiz practice
FAQs

Mathematics Answer, Explanation and Revision Hints

(0) included digits से (4)-digit numbers बनाते समय first digit restriction क्यों अलग handle होती है? / Why is the first digit restriction handled separately when forming (4)-digit numbers from digits including (0)?

Correct Answer: A. क्योंकि first digit (0) होने पर number (4)-digit नहीं रहेगा / Because if the first digit is (0), the number will not remain (4)-digit. Explanation: Leading zero valid (4)-digit number नहीं बनाता। परीक्षा में digit arrangement में first place condition पहले देखें। / A leading zero does not form a valid (4)-digit number. In exams check the first-place condition first in digit arrangements.

Which concept should I revise for this Mathematics MCQ?

A leading zero does not form a valid (4)-digit number. In exams check the first-place condition first in digit arrangements.

What exam hint can help solve this Mathematics question?

Leading zero valid (4)-digit number नहीं बनाता। परीक्षा में digit arrangement में first place condition पहले देखें।