Concept-wise Practice

powers of surds MCQ Questions for Class 10

powers of surds 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 powers of surds.

यदि \(x=\sqrt{2}\), तो \(x^4-4x^2+4\) का मान क्या है?

If \(x=\sqrt{2}\), what is the value of \(x^4-4x^2+4\)?

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Correct Answer

A. (0)

Step 1

Concept

\(x^2=2\).

Step 2

Why this answer is correct

Therefore (x-4=\(x^2\)2=4), and the value is (4-8+4=0).

Step 3

Exam Tip

For powers of a surd, first find \(x^2\). चरण 1: \(x^2=2\) है। चरण 2: इसलिए (x-4=\(x^2\)2=4), और मान (4-8+4=0) है। चरण 3: मूल वाली संख्या पर घात लगाते समय पहले \(x^2\) निकालें।

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