CBSE BOARD XII, asked by richa91044, 1 year ago

please solve this question ​

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Answered by ajeetpatel12
2

Explanation:

this is in geometric progression

sum of gp=a(1-r^n)/(1-r)

= 1(1-3^n)/(1-3)

=(3^n-1)/2

143nature: hi
143nature: we feel tired due to low glucose levels present in the body
143nature: hope you understand
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