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Find the 76 th term of the arithmetic sequence 
-26,-41,-56,dots
Answer:

Find the 7676 th term of the arithmetic sequence 26,41,56, -26,-41,-56, \ldots \newlineAnswer:

Full solution

Q. Find the 7676 th term of the arithmetic sequence 26,41,56, -26,-41,-56, \ldots \newlineAnswer:
  1. Identify common difference: Identify the common difference in the arithmetic sequence.\newlineThe common difference dd is the difference between any two consecutive terms.\newlineFor the given sequence: 41(26)=41+26=15-41 - (-26) = -41 + 26 = -15
  2. Use formula for nth term: Use the formula for the nth term of an arithmetic sequence.\newlineThe nth term ana_n of an arithmetic sequence can be found using the formula:\newlinean=a1+(n1)da_n = a_1 + (n - 1)d\newlinewhere a1a_1 is the first term and dd is the common difference.
  3. Calculate 7676th term: Calculate the 7676th term using the formula.\newlinea76=a1+(761)(15)a_{76} = a_1 + (76 - 1)(-15)\newlinea76=26+75(15)a_{76} = -26 + 75(-15)
  4. Perform multiplication and addition: Perform the multiplication and addition to find the 76th76^{\text{th}} term.a76=26+(75×15)a_{76} = -26 + (75 \times -15)a76=261125a_{76} = -26 - 1125a76=1151a_{76} = -1151

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