यदि (a=3), तो \(2a^2-a+1\) का मान क्या होगा?

If (a=3), what is the value of \(2a^2-a+1\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

C. (16)

Step 1

Concept

Substituting gives (2a-2-a+1=2\(3^2\)-3+1=16). Evaluate powers before multiplication.

Step 2

Why this answer is correct

The correct answer is C. (16). Substituting gives (2a-2-a+1=2\(3^2\)-3+1=16). Evaluate powers before multiplication.

Step 3

Exam Tip

मान रखने पर (2a-2-a+1=2\(3^2\)-3+1=16)। पहले घात फिर गुणा करें।

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Mathematics Answer, Explanation and Revision Hints

यदि (a=3), तो \(2a^2-a+1\) का मान क्या होगा? / If (a=3), what is the value of \(2a^2-a+1\)?

Correct Answer: C. (16). Explanation: मान रखने पर (2a-2-a+1=2\(3^2\)-3+1=16)। पहले घात फिर गुणा करें। / Substituting gives (2a-2-a+1=2\(3^2\)-3+1=16). Evaluate powers before multiplication.

Which concept should I revise for this Mathematics MCQ?

Substituting gives (2a-2-a+1=2\(3^2\)-3+1=16). Evaluate powers before multiplication.

What exam hint can help solve this Mathematics question?

मान रखने पर (2a-2-a+1=2\(3^2\)-3+1=16)। पहले घात फिर गुणा करें।