What is the 10th term of the following series: \( 7,14,28 \) ,
Step-by-step Solution:
What is the 10th term of the following series: 7, 14, 28, ...
Step 1: Identify the type of series
The series is a geometric progression with first term a = 7 and common ratio r = 2.
Step 2: Use the formula for the nth term
The formula for the nth term is a_n = a × r^(n-1). For n = 10, a_10 = 7 × 2^(10-1) = 7 × 2^9.
Step 3: Calculate the 10th term
2^9 = 512, so a_10 = 7 × 512 = 3584.
Answer: The 10th term is 3584. Therefore, the correct option is (B) 3584.