arithmetic sequence the 15th term is 25 and the term is 15. what is the common different. write the sequence. find the 40th
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Its given that first term is 20,i.e.,a = 20 and that 8th term,i.e.,a + 7d = 0.
Putting the value of a as 20, we get 7d = -20.
Now we have to find 15th term,i.e., a + 14d = 20 + 2.7d = 20 - 2.20 = 20 - 40 = -20.
Thus, the 15th term is -20.
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Hinas ColdOne
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Answered August 5, 2018
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