Find the first four terms of a geometric progression whose nth is 4(-5)na.20, 100, 500, 2500b.- 20, - 100, - 500, - 2500c.20, - 100, - 500, 2500d.- 20. - 100, - 500, 2500
Question
Find the first four terms of a geometric progression whose nth is 4(-5)na.20, 100, 500, 2500b.- 20, - 100, - 500, - 2500c.20, - 100, - 500, 2500d.- 20. - 100, - 500, 2500
Solution
The question seems to be incomplete. The nth term of a geometric progression is usually given in the form a*r^(n-1), where 'a' is the first term and 'r' is the common ratio. However, in your question, the nth term is given as 4(-5)n, which is not in the usual form. Also, the options provided do not seem to match the given nth term. Could you please provide the complete and correct details?
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