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Find the 
77^("th ") term of the arithmetic sequence 
14,3,-8,dots
Answer:

Find the 77th  77^{\text {th }} term of the arithmetic sequence 14,3,8, 14,3,-8, \ldots \newlineAnswer:

Full solution

Q. Find the 77th  77^{\text {th }} term of the arithmetic sequence 14,3,8, 14,3,-8, \ldots \newlineAnswer:
  1. Use Arithmetic Sequence Formula: To find the 7777th term of an arithmetic sequence, we need to use the formula for the nth term of an arithmetic sequence, which is given by:\newlinean=a1+(n1)d a_n = a_1 + (n - 1)d \newlinewhere an a_n is the nth term, a1 a_1 is the first term, n n is the term number, and d d is the common difference between the terms.
  2. Identify First Term: First, we identify the first term a1 a_1 of the sequence, which is given as 1414.
  3. Find Common Difference: Next, we need to find the common difference d d . We can do this by subtracting the second term from the first term:\newlined=314 d = 3 - 14 \newlined=11 d = -11
  4. Calculate 7777th Term: Now that we have the first term and the common difference, we can find the 7777th term a77 a_{77} using the formula:\newlinea77=a1+(771)d a_{77} = a_1 + (77 - 1)d \newlinea77=14+(76)(11) a_{77} = 14 + (76)(-11)
  5. Calculate 7777th Term: Now that we have the first term and the common difference, we can find the 7777th term a77 a_{77} using the formula:\newlinea77=a1+(771)d a_{77} = a_1 + (77 - 1)d \newlinea77=14+(76)(11) a_{77} = 14 + (76)(-11) We perform the multiplication and addition to find a77 a_{77} :\newlinea77=14+(76)(11) a_{77} = 14 + (76)(-11) \newlinea77=14836 a_{77} = 14 - 836 \newlinea77=822 a_{77} = -822

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