Math, asked by Myin5464, 1 year ago

If an 56,63, 70.....497 how many terms are in the series

Answers

Answered by prince9378

1

an=a+(n-1)d,497=56+(n-1)7,497=56+7n-7,497=49+7n,497-49=7n,448=7n,n=448/7,n=64

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