Analyse and answer the question — task. Mathematics CBSE, Class 8 New.

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எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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Assertion (A): Given, length \(a\) \(=\) \(13\) \(cm\) and breadth \(=\) \(11\) \(cm\) of a reactangle. If, its length is decreased by \(m\) \(=\) \(2\) \(cm\) and breadth is increased by \(n\) \(=\) \(6\) \(cm\), then their difference in area is calculated using \(-mb + an - mn\).

Reason (R): Area of the rectangle \(=\) \(\text{length} + \text{breadth}\)

Assertion(A) is true but reason(R) is false
Assertion(A) is false but reason(R) is true
Both assertion(A) and reason(R) are true and reason(R) is the correct explanation of assertion(A)
Both assertion(A) and reason(R) are true but reason(R) is not the correct explanation of assertion(A)

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2. Analyse and answer the question

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