A sequence can be generated by using an = an-1 + 4, where a1 = 6 and n is a whole number greater than 1. What are the first four terms in the sequence?

Step-by-Step Explanation:

The given relation between the nth term and it's previous term is given by:

GiveN:

Now finding the other three terms of the AP with the given relation.

Putting a1 = 4,

Now, Third term:

Putting a2 = 8,

Now, Fourth term:

Putting a3 = 12,

Hence, The first four terms of the AP is 4, 8, 12 & 16.

answer: the answer is 40.82

step-by-step explanation: 3.14 x 13(or half of 26) to the power of 2