Math, asked by TbiaSupreme, 1 year ago

S₂₀=100, d=-2, find a,For the given AP, find

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Answered by jashn48

0

I hope
it'll help you

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Answered by teju7121

1

sn=n/2(2a +( n-1) d
according to the problem,
20/2(2a-38)=100
2a-38=10
2 a=48
a=24

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