Question

Hi l need your help
please give answer step by step​

Answer 1

Step-by-step explanation:

1st three terms will be -7,-13/2,-6

HOPE I HELPED U UNNIE

Answer 2

Answer:

Solution

Refer to the attachment ⬆️

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more important formula

• to find common difference:t2-t1,t3-t2
• to find 2nd term or 3rd term : t1+d,t2+d
• to find n term =tn=a+(n-1)d
• to find the sum of n term=
• $s \: n = \frac{n}{2} (2a + (n - 1) \times d)$

Step-by-step explanation:

hope you appreciate this ans