The first three terms of a sequence are given by 5x + 8, -2r+ 1, x-4 (a) When x 11, show that the first three terms form the start of a geometric sequence, and state the value of the common ratio. (b) Given that the entire sequence is geometric for x = 11 () state why the associated series has a sum to infinity (ii) calculate this sum to infinity.
The first three terms of a sequence are given by 5x + 8, -2r+ 1, x-4 (a) When x 11, show that the first three terms form the start of a geometric sequence, and state the value of the common ratio. (b) Given that the entire sequence is geometric for x = 11 () state why the associated series has a sum to infinity (ii) calculate this sum to infinity.
Chapter9: Sequences, Probability And Counting Theory
Section9.4: Series And Their Notations
Problem 54SE: Write 0.65 as an infinite geometric series using summation notation. Then use the formula for...
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