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algebra step MCQ Questions for Class 10

algebra step 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 algebra step.

Question 1/1 Easy Mathematics Chapter 1: Real Numbers 6: Proof of irrationality of √2, √3, √5 Class 10 Level 17

\(\sqrt{2}\) के प्रमाण में (a=2k) रखने पर \(a^2\) का सही मान क्या होगा?

In the proof of \(\sqrt{2}\), if (a=2k), what is the correct value of \(a^2\)?

Explanation opens after your attempt
Correct Answer

A. \(4k^2\)

Step 1

Concept

We have (a=2k).

Step 2

Why this answer is correct

Squaring gives (a-2=(2k)2=4k-2).

Step 3

Exam Tip

Do not forget to square the coefficient also. चरण 1: (a=2k) दिया है। चरण 2: वर्ग करने पर (a-2=(2k)2=4k-2) मिलता है। चरण 3: गुणांक का भी वर्ग करना न भूलें।

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