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Ex2

A =

[tex]2 {}^{n + n - 1} = 2 {}^{2n - 1} [/tex]

B =

[tex] \frac{2 {}^{3 - n + n + 2} }{2 {}^{ - 4n} } = 2 {}^{5 + 4n} [/tex]

C =

[tex]2 {}^{(n - 1) \times 3} \times 2 {}^{ - n} = 2 {}^{3n - 3} \times 2 {}^{ - n} = 2 {}^{2n - 3} [/tex]

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