CLEARLY stated:If I know that a1 + a2 is 13
And a4 is -1
How can I get sum number of first 30 numbers in sequence?
a1 + a2 is 13 translates into (a1)+ (a1+d) = (2a1+d) = 13Hi,
If I know that a1 + a2 is 13
And a4 is -1
How can I get sum number of first 30 numbers in sequence?
Is there any online calculator that can help me?
No no, only Subhotosh can recommend such videos. You can get into great trouble doing this. No need to worry as I won't report you.CLEARLY stated:
We have an arithmetic sequence.
Sum of first 2 terms = 13
4th term = -1
Go here :
Intro to arithmetic sequences | Algebra (video) | Khan Academy
Sal introduces arithmetic sequences and their main features, the initial term and the common difference. He gives various examples of such sequences, defined explicitly and recursively.www.khanacademy.org
Come back if you have questions.
HOKAY: a dollar down and a dollar a week;BTW would you be interested in purchasing a bridge I have for sale, it's called the Brooklyn Bridge
People who need a calculator do not know. You Makito want to know.If I know that a1 + a2 is 13
And a4 is -1
How can I get sum number of first 30 numbers in sequence?