3 years ago

Find the first four terms of the sequence given a1=18 and an+1=2+an/2.

Mathematics

2 answers:

EleoNora [17]3 years ago

7 0

Answer:

Step-by-step explanation:

hello

$a_1=18\\\\a_2=2+\dfrac{a_1}{2}=2+\dfrac{18}{2}=2+9=11\\\\a_3=2+\dfrac{a_2}{2}=2+\dfrac{11}{2}=\dfrac{4+11}{2}=\dfrac{15}{2}\\\\a_4=2+\dfrac{a_3}{2}=2+\dfrac{15}{2}=\dfrac{4+15}{2}=\dfrac{19}{2}$

hope this helps

Ksivusya [100]3 years ago

5 0

Answer: 18, 10, 6, 4

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