The sum
of first and 21st terms of
an arithmatic sequence is
140.Find the sum of 6th and 16th terms. What is 11th terms.
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The sum
of first and 21st terms of
an arithmatic sequence is
140.Find the sum of 6th and 16th terms. What is 11th terms.
Step-by-step explanation:
Sum of the First n Terms of an Arithmetic Sequence Suppose a sequence of numbers is arithmetic (that is, it increases or decreases by a constant amount each term), and you want to find the sum of the first n terms.
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