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Find the 71 st term of the arithmetic sequence 
1,17,33,dots
Answer:

Find the 7171 st term of the arithmetic sequence 1,17,33, 1,17,33, \ldots \newlineAnswer:

Full solution

Q. Find the 7171 st term of the arithmetic sequence 1,17,33, 1,17,33, \ldots \newlineAnswer:
  1. Arithmetic Sequence Formula: To find the 71st71^{st} term of an arithmetic sequence, we need to use the formula for the nthn^{th} term of an arithmetic sequence, which is:\newlinean=a1+(n1)da_n = a_1 + (n - 1)d\newlinewhere ana_n is the nthn^{th} term, a1a_1 is the first term, nn is the term number, and dd is the common difference between the terms.
  2. Identify First Term: First, we identify the first term a1a_1 of the sequence, which is given as 11.
  3. Find Common Difference: Next, we need to find the common difference dd. We can do this by subtracting the first term from the second term: d=171=16d = 17 - 1 = 16
  4. Calculate 7171st Term: Now that we have the first term and the common difference, we can find the 7171st term a71a_{71} using the formula:\newlinea71=a1+(711)da_{71} = a_1 + (71 - 1)d
  5. Substitute Values: Substitute the known values into the formula: a71=1+(711)×16a_{71} = 1 + (71 - 1) \times 16
  6. Perform Calculation: Perform the calculation inside the parentheses first: a71=1+(70×16)a_{71} = 1 + (70 \times 16)
  7. Multiply Values: Now, multiply 7070 by 1616: a71=1+1120a_{71} = 1 + 1120
  8. Add to Find 7171st Term: Finally, add 11 to 11201120 to find the 71st71st term:\newlinea71=1121a_{71} = 1121

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