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Question Expert Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 14

यदि \(x=\sqrt{2}\), तो \(\frac{x^6-8}{x^2-2}\) के बारे में सही कथन कौन-सा है?

If \(x=\sqrt{2}\), which statement about \(\frac{x^6-8}{x^2-2}\) is correct?

Explanation opens after your attempt
Correct Answer

A. यह अपरिभाषित हैIt is undefined

Step 1

Concept

For \(x=\sqrt{2}\), \(x^2=2\).

Step 2

Why this answer is correct

The denominator \(x^2-2=0\), so the fraction is undefined.

Step 3

Exam Tip

Before evaluating a fraction, always check whether the denominator becomes zero. चरण 1: \(x=\sqrt{2}\) होने पर \(x^2=2\)। चरण 2: हर \(x^2-2=0\) हो जाता है, इसलिए भिन्न अपरिभाषित है। चरण 3: भिन्न का मान निकालने से पहले हर शून्य तो नहीं, यह जरूर जाँचें।

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