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scoundrel [369]
3 years ago
15

55 points.Please simplify it .Don't answer of your don't know.​

Mathematics
2 answers:
aleksley [76]3 years ago
7 0

Step-by-step explanation:

i) answer =1

ii) 2 <u>-3m + 6n -2</u> x 3 <u>3-m</u>

JulijaS [17]3 years ago
6 0

Answer:

( i ) \boxed{1}

( ii ) \boxed{2^{6n - 3m - 2}\times 3^{3 - m}}

.

Step-by-step explanation:

( Part i )

\left(\frac{1}{x^{a - b}} \right)^{a + b}\left(\frac{1}{x^{b + a}} \right)^{b - a}

= \left(\frac{1}{x^{(a - b)(a + b)}} \right)\left(\frac{1}{x^{(b + a)(b - a)}} \right)

= \left(\frac{1}{x^{a^2 - b^2}} \right)\left(\frac{1}{x^{b^2-a^2}} \right)

= \frac{1}{x^{a^2 - b^2 + (b^2 - a^2)}}

= \frac{1}{x^0}

= \frac{1}{1}

= \boxed{1}

.

( Part ii )

\frac{2^{m + n}\times 3^{2m + 3} \times 4^{2n -1}}{6^{2m + n}\times 12^{m - n}}

=\frac{2^{m + n}\times 3^{2m + 3} \times 2^{2(2n -1)}}{(2\times3)^{2m + n}\times (3\times 2^2)^{m - n}}

=\frac{2^{m + n}\times 3^{2m + 3} \times 2^{4n -2}}{2^{2m + n}\times3^{2m + n}\times 3^{m - n}\times 2^{2(m - n)}}

=\frac{2^{m + n + 4n - 2}\times 3^{2m + 3}}{2^{2m + n + 2m - 2n}\times3^{2m + n + m - n}}

=\frac{2^{m + 5n - 2}\times 3^{2m + 3}}{2^{4m - n}\times3^{3m}}

= 2^{m + 5n - 2 - (4m - n)}\times3^{2m + 3 - 3m}

= \boxed{2^{6n - 3m - 2}\times 3^{3 - m}}

.

Happy to help :)

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