Parabolic sequence
Find the sum of the first nine terms of an arithmetic sequence whose general term is a(n) = 3n2+5
Final Answer:
You need to know the following knowledge to solve this word math problem:
algebraarithmeticGrade of the word problem
Related math problems and questions:
- AP - general term
Find the sum of the first 12 terms of the arithmetic sequence whose general term is an=3n+5. - The sum 39
The sum of the first six terms of the arithmetic sequence is 72, and the second term is seven times the fifth term. Find the first term and the AP difference. - The third 2
The third term of an arithmetic sequence is -12, and the seventh term is 8. What is the sum of the first 10 terms? - Common difference 2 What is the common difference of the arithmetic sequence with 20 terms, whose first term is 5a+b and the last term is 43a+20 b?
- The sum 23 The sum of the first 10 terms of an arithmetic sequence is 530. What is the first term if the last term is 80? What is the common difference?
- Arithmetic sequence Determine the sum of the first 12 terms of an AP (arithmetic sequence) if a4 is equal to 7 and a8 is equal to minus 1.
- Geometric sequence terms The two terms of the geometric sequence are a2=12 and a5=three halves. a) calculate the tenth term of the sequence. b) calculate the sum of the first 8 terms of the sequence. v) how many first terms of the sequence need to be added so that the sum is equa
