Question

Which term of the AP21, 18, 15 ,.............., is -81 ?also a term 0 . Give reason for your answer ???

Answer 1

$\huge \bold{hey \: mate}$

here's your answer ⏩⏩


follow the attachment above ↗↗


$<b>therefore, 35th term is -81</b>$

✌hope it helps u ✌

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Answer 2

✌✌HI BUDDY HERE IS UR ANSWER✌✌✌

THE GIVEN SEQUENCE IS
➡ 21, 18, 15, 12,..............., -81

⏺An= a + (n-1)d

⏺An= 21+(n-1)×-3

⏺An= 21-3n+3

⏺An= 24-3n====(1)

⏺since An =-81

⏺-81= 24-3n

⏺3n= 105

n= 35

-81 is the 35th term of the given sequence

now, another term
,An=0

from equation 1, we have

An= 24-3n

0=24-3n


3n= 24

therefore, n= 8
, here there is no reason, to justify my answer, it's been processically done , so therfore the given value are correct
..

⏫⏫hope it helps u⏬⏬⏬