Answer:
729
Step-by-step explanation:
<u><em>Write the recursive formula through the pattern:</em></u>
<u><em /></u>
<u><em>Find terms of sequence through 9, -27, 81, -243 :</em></u>
<em>I hope this helps you</em>
<em>:)</em>
To calculate the mean we need x and f both
dkdkkdkddkdkdkddkdkdkkkdkkkkkdkdkd
