Question

Which term of the AP 53, 48, 43, ........ is the 1st positive term ?
read the question carefully.
don't give negative term by copying from Google ​

Answer 1

Given :

a= 53

d= 48 - 53 = -5

Let nth term be the first negative term of the given AP.

Now,

$t_{n} = \: a + (n - 1)d$

=53+(n-1) d

=53+ (n-1) × -5

= 53 - 5n + 5

= 58 - 5n

Now,

58 = 5n

$n \: = \frac{58}{5}$

but this will. not be able to find the negative term.

Let n be 12 .

$t_{n} \: = \: 58 - 5(12) \\ = 58 - 60 \\ = - 2$

So, -2 is the first negative term.

Answer 2

Answer:

hope this will help you..☺