Math, asked by vasanth1711, 7 months ago

in an arithmetic progression a=-10 and an=50 then s10 is? plzzzz fast

Answers

Answered by waquarahmad4321

1

Answer:

300

Step-by-step explanation:

a10=a+(n-1)d

a=10,a10=50,n=10

d=5

s10=10(a+a10)/2

=300

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