Math, asked by harshadalonare15, 1 month ago

for an A.P t4=12 , d=-10 then find tn

Answers

Answered by st283901

2

Answer:

t4=12 d=-10

a+3d=12

a-30=12

a=42

tn=a+(n-1)d

tn=42+(n-1)-10

tn=42-10n+10

tn=52-10n

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