Question

find the sum of first 23terms of the ap 4 -3 -10
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Answer 1

Answer:

the number which you have given are not in ap plz provide the correct ap

Answer 2

Step-by-step explanation:

Sn=(an + a)n/2

a=4

an=?

n=23

an=a+(n-1)d

4+(23-1)-7

4+22×-7

4+(-154)

-150

sn=(an+a)n/2

(-150+4)23/2

-146×23/2

-73×23

-1679