\( 87\times93 \) को पहचान से निकालने पर उत्तर क्या है?

What is \( 87\times93 \) using an identity?

Explanation opens after your attempt
Correct Answer

A. (8091)

Step 1

Concept

(87\times93=(90-3)(90+3)=902-32=8091). Exam tip: use \(a^2-b^2\) for numbers around the same centre.

Step 2

Why this answer is correct

The correct answer is A. (8091). (87\times93=(90-3)(90+3)=902-32=8091). Exam tip: use \(a^2-b^2\) for numbers around the same centre.

Step 3

Exam Tip

(87\times93=(90-3)(90+3)=902-32=8091)। परीक्षा में समान केंद्र वाली संख्याओं पर \(a^2-b^2\) लगाएँ।

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Mathematics Answer, Explanation and Revision Hints

\( 87\times93 \) को पहचान से निकालने पर उत्तर क्या है? / What is \( 87\times93 \) using an identity?

Correct Answer: A. (8091). Explanation: (87\times93=(90-3)(90+3)=902-32=8091)। परीक्षा में समान केंद्र वाली संख्याओं पर \(a^2-b^2\) लगाएँ। / (87\times93=(90-3)(90+3)=902-32=8091). Exam tip: use \(a^2-b^2\) for numbers around the same centre.

Which concept should I revise for this Mathematics MCQ?

(87\times93=(90-3)(90+3)=902-32=8091). Exam tip: use \(a^2-b^2\) for numbers around the same centre.

What exam hint can help solve this Mathematics question?

(87\times93=(90-3)(90+3)=902-32=8091)। परीक्षा में समान केंद्र वाली संख्याओं पर \(a^2-b^2\) लगाएँ।

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