Question

A linear transformation maps a point (π‘₯, 𝑦) in the plane to the point (π‘₯Μ‚, 𝑦̂) according to the rule

                                  π‘₯Μ‚ = 3𝑦, 𝑦̂ = 2π‘₯.

Then, the disc π‘₯ 2 + 𝑦 2 ≀ 1 gets transformed to a region with an area equal to _________ . (Rounded off to two decimals)


Use Ο€ = 3.14

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Answer :

18.84


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