Find the area of the rectangular region — task. Mathematics CBSE, Class 8.

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Determine the area of the rectangular region if the length and breadth are

-13 b^{3} c

and

-5 b c^{3}

Area of the rectangular region \(=\)

i i^{i} i^{i}

[Note: Insert number first, which is followed by variables in the answer box.]

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7. Find the area of the rectangular region