Question

Find the first positive term of AP: -249,-242,-235….​

Answer 1

$<b> here is your ans$

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Given :-

=> D = - 242 - ( -249 )

D = 7

=> a = -249

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➡An > 0

➡a + ( n - 1 )D > 0

➡-249 + ( n - 1 ) 7 > 0

➡-249 + 7n - 7 > 0

➡-256 + 7n > 0

➡n > 256 / 7

➡n > 36.57142856

( Approximately Equal To 37 )

Hence , 37 term of an AP is First Positive term

$\fbox{ans = 37 \: term}$

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$<marquee>hope it helps u$

Answer 2

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