Question

Pls give proper answer


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Answer 1

Answer:

1) $-\frac{8a^6}{b^9}$

2) 19

3) $\frac{4(4 * 2^{n+1}-2^n) }{16*2^{n+2}-2^{n+3} }$

Step-by-step explanation:

KINDLY SEE THE ATTACHMENT FOR DETAILED SOLUTION  

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