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relations MCQ Questions for Class 10

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

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2 questions tagged with relations.

Question 1/2 Expert Mathematics Polynomials Polynomials in one variable Class 10 Level 48

यदि (p(x)=x-2-ax+b) के शून्यक (a) और (b) हैं, तो कौन-सा संबंध सही है?

If the zeroes of (p(x)=x-2-ax+b) are (a) and (b), which relation is correct?

Explanation opens after your attempt
Correct Answer

A. (a+b=a) और (ab=b)(a+b=a) and (ab=b)

Step 1

Concept

The sum of zeroes from the polynomial is (a) and the product is (b). Hence if the zeroes are (a,b), then (a+b=a) and (ab=b).

Step 2

Why this answer is correct

The correct answer is A. (a+b=a) और (ab=b) / (a+b=a) and (ab=b). The sum of zeroes from the polynomial is (a) and the product is (b). Hence if the zeroes are (a,b), then (a+b=a) and (ab=b).

Step 3

Exam Tip

शून्यकों का योग बहुपद से (a) और गुणनफल (b) है। इसलिए यदि शून्यक (a,b) हैं, तो (a+b=a) और (ab=b) होना चाहिए।

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Question 2/2 Hard Mathematics Quadratic Equations Introduction to Quadratic Equations Class 10 Level 29

यदि \(x^2+px+q=0\) के मूल (p) और (q) ही हैं, तो कौन-सा संबंध सही है?

If the roots of \(x^2+px+q=0\) are (p) and (q) themselves, which relation is correct?

Explanation opens after your attempt
Correct Answer

A. (p+q=-p) और (pq=q)(p+q=-p) and (pq=q)

Step 1

Concept

The sum of roots is (-p) and the product is (q). Since the roots are (p,q), we get (p+q=-p) and (pq=q).

Step 2

Why this answer is correct

The correct answer is A. (p+q=-p) और (pq=q) / (p+q=-p) and (pq=q). The sum of roots is (-p) and the product is (q). Since the roots are (p,q), we get (p+q=-p) and (pq=q).

Step 3

Exam Tip

मूलों का योग (-p) और गुणनफल (q) होता है। दिए मूल (p,q) हैं, इसलिए (p+q=-p) और (pq=q)।

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