makaylakline9275 makaylakline9275

22-04-2024
Mathematics

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The geometric series a+ar+ar²+ar3+......[infinity] has sum 7 and the terms involving odd powders of r has sum ′3′, then the value of (a²−r²) is-
A. 5/4
B. 5/2
C. 25/4
D. 5

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