Question

a=34,n=-13,d=-2,sn=10 sn=n/2(2a-(n-1)d​

Answer 1

Answer:

*INCOMPLETE QUESTION *

Step-by-step explanation:

sn=n/2(2a-(n-1)d)

10= -13/2 (2×34 - ( -13-1) -2)

10 = -13/2 (68 +14 -2 )

10 = -13/2 ×80

10 not equal to -52 hence LHS Is not equal to RHS

Answer 2

Answer:

Heyy mate here is ur answer

Step-by-step explanation:

I hope this helps u out o