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Find the 8th term of the geometric sequence shown below.

-8x^(6),-8x^(7),-8x^(8),dots
Answer:

Find the 88th term of the geometric sequence shown below.\newline8x6,8x7,8x8, -8 x^{6},-8 x^{7},-8 x^{8}, \ldots \newlineAnswer:

Full solution

Q. Find the 88th term of the geometric sequence shown below.\newline8x6,8x7,8x8, -8 x^{6},-8 x^{7},-8 x^{8}, \ldots \newlineAnswer:
  1. Find Common Ratio: To find the 8th8^{\text{th}} term of the geometric sequence, we first need to determine the common ratio (rr) of the sequence. The common ratio is found by dividing any term by the previous term.\newlineCalculation: r=8x78x6=x76=xr = \frac{-8x^7}{-8x^6} = x^{7-6} = x
  2. Calculate 88th Term: Now that we have the common ratio, we can find the 88th term by using the formula for the nth term of a geometric sequence, which is an=a1r(n1)a_n = a_1 \cdot r^{(n-1)}, where a1a_1 is the first term and nn is the term number.\newlineCalculation: a8=(8x6)x(81)=(8x6)x7=8x(6+7)=8x13a_8 = (-8x^6) \cdot x^{(8-1)} = (-8x^6) \cdot x^7 = -8x^{(6+7)} = -8x^{13}

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