Math, asked by damodaran2008, 11 months ago

answer if you are sure and an ace​

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Answered by mansurijishan805
1

Step-by-step explanation:

sum \: a =  \frac{first \: term \: (commen \: ratio ^{n} - 1) }{commen \: ratio \:  - 1}  \\  =  \frac{1( {a}^{n} - 1 )}{a - 1}  \\  =  \frac{ {a}^{n}  - 1}{a - 1}  \\  \\( b) =  \frac{ {a}^{n} - 1 }{a - 1}

Answered by Anonymous
49

HOPE ITS HELP..................

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