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Find the 54 th term of the arithmetic sequence 
-15,4,23,dots
Answer:

Find the 5454 th term of the arithmetic sequence 15,4,23, -15,4,23, \ldots \newlineAnswer:

Full solution

Q. Find the 5454 th term of the arithmetic sequence 15,4,23, -15,4,23, \ldots \newlineAnswer:
  1. Arithmetic Sequence Formula: To find the 5454th term of an arithmetic sequence, we need to use the formula for the nth term of an arithmetic sequence, which is:\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 15-15.
  3. Find Common Difference: Next, we need to find the common difference d d . We can do this by subtracting the first term from the second term:\newlined=4(15) d = 4 - (-15) \newlined=4+15 d = 4 + 15 \newlined=19 d = 19
  4. Calculate 5454th Term: Now that we have the first term and the common difference, we can find the 5454th term a54 a_{54} using the formula:\newlinea54=a1+(541)d a_{54} = a_1 + (54 - 1)d \newlinea54=15+(53)(19) a_{54} = -15 + (53)(19) \newlinea54=15+1007 a_{54} = -15 + 1007 \newlinea54=992 a_{54} = 992

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