Question

I need to check my answer

Answer 1

Which term of the sequence
2005 , 2000 , 1995 ,1990 , 1985 .............
is the first negative term

Answer 2

find which term is 0

Answer 3

I am getting 43 as the answer

Answer 4

how ?

Answer 5

0 is 42 nd term
first negative term would be 43rd one

Answer 6

you mean 0 is 402nd term ?

Answer 7

yes 403 is given in my book, but i am getting 43 i don't where i am making a mistake

Answer 8

lets say we have sequence as

15,10,5,0,....

to find n'th term with an = 0, what will you do ?

Answer 9

0= a+(n-1)d

Answer 10

a= 15
d= -5
right ?

Answer 11

yes

Answer 12

2005 , 2000 , 1995 ,1990 , 1985 .............

0 = a+ (n-1)d

a = 2005
d= -5
plug in

n=...?

Answer 13

n-1 = 2005/5 = ...

Answer 14

0 = 2005 + (n-1)-5

-2005=-5n+5
-2010/-5 = 42

Answer 15

2010/5 = 402

Answer 16

oh lol sry