Q1 of 176 Page 20

Find the sum of the following geometric progressions :

4, 2, 1, ….. to 10 terms.

Common Ratio = r =


∴ Sum of GP for n terms = …(1)


⇒ a = 4, , n = 10


∴ Substituting the above values in (1) we get,


⇒


⇒


⇒


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