Mathematics
Question
Edson
The first term of a geometric progression is 4 and the fourth term is 108. Find the common ratio.
Mathematics
Question
Edson
Find the difference between the sums of the first 5 terms of the arithmetic progressions, whose first terms are 12 and 8, and whose common differences are 2 and 3 respectively.
Mathematics
Question
Edson
The first term of an arithmetic progression is 13 and the fifth term is 21. Find the common difference and the sum of the first ten terms.
Mathematics
Question
Edson
The first term of an arithmetic progression is -12 and the last term is 40. If the sum of the term is 196. Find the number of terms and the common difference.
Mathematics
Question
Edson
Find the arithmetic mean of
(a) 2 and 28
(b) 5 and 65
(c) 2 - √3 and 2 + √3
(d) (k +m)² and (k² - m²)