Question

an =n(n-1)(n-2); a5 and a8​

Answer 1

Answer:

Step-by-step explanation:

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Answer 2

Given:

an=n(n-1)(n-2)

To find:

The value of a5 and a8​

Solution:

The value of a5 is 60 and a8​ is 336.

We can find the values by following the given process-

We know that the given formula for obtaining the (an) term will be used to calculate a5 and a8.

We are given that an=n(n-1)(n-2).

Here, the value of n has to be replaced by 5 and 8 to obtain the required values.

The two values of n are 5 and 8.

Using these two values, we will calculate the values as follows-

a5=5(5-1)(5-2)

a5=5×4×3

a5=60

Similarly, we can put the value of n as 8.

a8=8(8-1)(8-2)

a8=8×7×6

a8=336

Therefore, the value of a5 is 60 and a8​ is 336.