Bytelearn - cat image with glassesAI tutor

Welcome to Bytelearn!

Let’s check out your problem:

Find the 12^th term of the geometric sequence 
5,25,125,dots
Answer:

Find the 12th 12^{\text {th }} term of the geometric sequence 5,25,125, 5,25,125, \ldots \newlineAnswer:

Full solution

Q. Find the 12th 12^{\text {th }} term of the geometric sequence 5,25,125, 5,25,125, \ldots \newlineAnswer:
  1. Identify type of sequence: Identify the type of sequence.\newlineThe given sequence is geometric because each term after the first is found by multiplying the previous term by a constant called the common ratio.
  2. Determine common ratio: Determine the common ratio rr of the sequence.\newlineTo find the common ratio, divide the second term by the first term.\newline255=5\frac{25}{5} = 5\newlineCommon Ratio rr: 55
  3. Use formula for nth term: Use the formula for the nth term of a geometric sequence.\newlineThe nth term ana_n of a geometric sequence can be found using the formula an=a1×r(n1)a_n = a_1 \times r^{(n-1)}, where a1a_1 is the first term and rr is the common ratio.
  4. Calculate 1212th term: Calculate the 1212th term using the formula.\newlineFirst term a1=5a_1 = 5\newlineCommon Ratio r=5r = 5\newlinen = 1212\newlinea12=5×5121=5×511a_{12} = 5 \times 5^{12-1} = 5 \times 5^{11}
  5. Perform exponentiation and multiplication: Perform the exponentiation and multiplication to find the 12th12^{\text{th}} term.a12=5×511=5×48828125a_{12} = 5 \times 5^{11} = 5 \times 48828125a12=244140625a_{12} = 244140625

More problems from Geometric sequences