Question

What is the term a_5?

Answer 1

34

Explanation:

`\text{We have the recursive form of sequence:}\\\\a_1=50\\a_n=a_(n-1)+(-4)=a_(n-1)-4\\\\a_2=a_(2-1)-4=a_1-4\to a_2=50-4=46\\a_3=a_(3-1)-4=a_2-4\to a_3=46-4=42\\a_4=a_(4-1)-4=a_3-4\to a_4=42-4=38\\a_5=a_(5-1)-4=a_4-4\to a_5=38-4=34`