Question

Find S10 for (-1) + (-7) + (-13) + (-19) +...
A. 250
B. -280
C. (-23)
D. 132
HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP

Answer 1

common difference = -6
a=-1
n=10

Answer 2

and it is an AP

Answer 3

\[S_n=\frac{n}{2}(2a+(n-1)d)\]

Answer 4

the answes ar eup there i just need which one is it

Answer 5

we are not here to give answers,solve yourself

Answer 6

the othe rguy gav eme answers meanyyyyyyyyyyyyyyyyyy

Answer 7

@hartnn badtameezi kar raha hai ye :(