Question

Find the fourth term of a geometric sequence if a=6 and r=2. Use the formula an=ar^n-1

Answer 1

Answer:

48

Step-by-step explanation:

here, we are using an = ar^n-1

so, we have to find a4= ar^4-1 = ar^3

now, putting the given values in the equation,

a4= (6)(2)^3 = 6(8) = 48

therefore, the 4th term is 48.

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All the best with your exam.