Question

please solve its urgent I need help please help me guys​

Answer 1

Step-by-step explanation:

Answer 1 and 2.i hope you got it.

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Answer 2

Answer:

(i) a=21, d=-3

nth term=a+(n-1)d=-81

21+(n-1)(-3)=-81

from here n=35 therefore 35th term is -81

(ii)similarly,84+(n-1)(-4)=0

n=22

(iii)5+(n-1)6=301

n=151/3 which is not a whole number so 301 is not a part of the AP

(iv)11+(n-1)(-3)=-150

calculate and you will see that n is not a whole no. so -150 is not a part of the AP

Step-by-step explanation: