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प्रश्न
Q 1.2
बेरीज
उत्तर
Given G.P. : `1 + 1/2 + 1/4 + 1/8 `+........
Here,
first terms, a = 1
common ratio, r =`(-1/2)/1=-1/2 (|r| = |-1/2|=1/2<1)`
∴ Required sum =`a/(1-r)=1/(1-(-1/2))=1/(1+1/2)=2/3`
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Geometric Progression - Finding Sum of Their First ‘N’ Terms
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