Find the explicit formula for a 1 =-4,a n =a n-1 +9,n>=2

Given:

and where .

To find:

The explicit formula for the given recursive formula.

Solution:

We know that recursive formula of an AP is:

Where, d is the common difference.

We have,

Here, d=9.

The first term of the AP is .

The explicit formula for an AP is:

Substituting and , we get

Therefore, the required explicit formula for the given sequence is .

b is 38 degrees.

a is 52 degrees.

this is because if b is 38 and a is 14 degrees more than b than 38+14=52 and 52+38=90 degrees. hope this .

asdsad

step-by-step explanation: