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What is the value........

What is the value........-example-1
User Mike Buhot
by
8.2k points

1 Answer

4 votes

Answer:


a_5 = 120

Explanation:

Given


a_1 = 1


a_n = n(a_(n-1))

Required


a_5

This is calculated as:


a_5 = 5(a_(5-1))


a_5 = 5*a_4

Calculate
a_4


a_4 =4(a_(4-1))


a_4 =4*a_3

Calculate
a_3


a_3 =3*a_2

Calculate
a_2


a_2 = 2 * a_1


a_2 = 2 * 1


a_2 = 2

So:


a_3 =3*a_2


a_3 = 3 * 2 = 6

So:


a_4 =4*a_3


a_4 = 4 * 6 =24

Lastly;


a_5 = 5*a_4


a_5 = 5 * 24


a_5 = 120

User Amercader
by
7.5k points

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