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2 results found for "polynomial-value" in Class 10.

Question Expert Mathematics Polynomials Irrational numbers and real numbers Class 10 Level 25

यदि (p\(\sqrt{5}\)=0) और (p(x)=x-2+ax-5) है, तो (a) का मान क्या है?

If (p\(\sqrt{5}\)=0) and (p(x)=x-2+ax-5), what is the value of (a)?

Explanation opens after your attempt
Correct Answer

A. (0)

Step 1

Concept

Substitution gives \(5+a\sqrt{5}-5=0\), so \(a\sqrt{5}=0\) and (a=0). Simplify like terms first while substituting.

Step 2

Why this answer is correct

The correct answer is A. (0). Substitution gives \(5+a\sqrt{5}-5=0\), so \(a\sqrt{5}=0\) and (a=0). Simplify like terms first while substituting.

Step 3

Exam Tip

रखने पर \(5+a\sqrt{5}-5=0\), इसलिए \(a\sqrt{5}=0\) और (a=0)। मान रखते समय समान पद पहले सरल करें।

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Question Hard Mathematics Polynomials Irrational numbers and real numbers Class 10 Level 27

यदि (p\(\sqrt{3}\)=0) और (p(x)=x-2+ax+3) है, तो (a) का मान क्या होगा?

If (p\(\sqrt{3}\)=0) and (p(x)=x-2+ax+3), what is the value of (a)?

Explanation opens after your attempt
Correct Answer

A. \(-2\sqrt{3}\)

Step 1

Concept

From \(3+a\sqrt{3}+3=0\), \(a\sqrt{3}=-6\), so \(a=-2\sqrt{3}\). After substituting an irrational value, separate like terms carefully.

Step 2

Why this answer is correct

The correct answer is A. \(-2\sqrt{3}\). From \(3+a\sqrt{3}+3=0\), \(a\sqrt{3}=-6\), so \(a=-2\sqrt{3}\). After substituting an irrational value, separate like terms carefully.

Step 3

Exam Tip

\(3+a\sqrt{3}+3=0\) से \(a\sqrt{3}=-6\), इसलिए \(a=-2\sqrt{3}\) है। अपरिमेय मान रखने के बाद समान पद अलग करें।

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